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Which equation has the same solution as 
x^(2)-8x-12=7 ?

(x-4)^(2)=35

(x+4)^(2)=3

(x+4)^(2)=35

(x-4)^(2)=3

Which equation has the same solution as x28x12=7 x^{2}-8 x-12=7 ?\newline(x4)2=35 (x-4)^{2}=35 \newline(x+4)2=3 (x+4)^{2}=3 \newline(x+4)2=35 (x+4)^{2}=35 \newline(x4)2=3 (x-4)^{2}=3

Full solution

Q. Which equation has the same solution as x28x12=7 x^{2}-8 x-12=7 ?\newline(x4)2=35 (x-4)^{2}=35 \newline(x+4)2=3 (x+4)^{2}=3 \newline(x+4)2=35 (x+4)^{2}=35 \newline(x4)2=3 (x-4)^{2}=3
  1. Simplify Equation: Simplify the given equation by moving all terms to one side to set the equation to zero.\newlinex28x127=0x^2 - 8x - 12 - 7 = 0\newlinex28x19=0x^2 - 8x - 19 = 0
  2. Check First Choice: Look at the first choice (x4)2=35(x - 4)^2 = 35 and expand it to see if it matches the simplified equation.(x4)2=x28x+16(x - 4)^2 = x^2 - 8x + 16This does not match the simplified equation x28x19x^2 - 8x - 19 because the constant term is different (+16(+16 instead of 19)-19).
  3. Check Second Choice: Look at the second choice (x+4)2=3(x + 4)^2 = 3 and expand it to see if it matches the simplified equation.(x+4)2=x2+8x+16(x + 4)^2 = x^2 + 8x + 16This does not match the simplified equation x28x19x^2 - 8x - 19 because the sign of the xx term is different (+8x(+8x instead of 8x)-8x) and the constant term is different (+16(+16 instead of 19)-19).
  4. Check Third Choice: Look at the third choice (x+4)2=35(x + 4)^2 = 35 and expand it to see if it matches the simplified equation.(x+4)2=x2+8x+16(x + 4)^2 = x^2 + 8x + 16This does not match the simplified equation x28x19x^2 - 8x - 19 because the sign of the xx term is different (+8x(+8x instead of 8x)-8x) and the constant term is different (+16(+16 instead of 19)-19).
  5. Check Fourth Choice: Look at the fourth choice (x4)2=3(x - 4)^2 = 3 and expand it to see if it matches the simplified equation.(x4)2=x28x+16(x - 4)^2 = x^2 - 8x + 16This does not match the simplified equation x28x19x^2 - 8x - 19 because the constant term is different (+16(+16 instead of 19)-19).
  6. Adjust First Choice: Since none of the choices match the simplified equation x28x19x^2 - 8x - 19 when expanded, we need to check if any of the choices can be transformed to match the simplified equation by moving terms around.\newlineLet's add 1919 to both sides of the first choice to see if it matches the simplified equation:\newline(x4)2=35(x - 4)^2 = 35\newline(x4)2+19=35+19(x - 4)^2 + 19 = 35 + 19\newlinex28x+16+19=54x^2 - 8x + 16 + 19 = 54\newlinex28x+35=54x^2 - 8x + 35 = 54\newlineThis does not match the simplified equation x28x19x^2 - 8x - 19.
  7. Adjust Second Choice: Add 1919 to both sides of the second choice to see if it matches the simplified equation:\newline(x+4)2=3(x + 4)^2 = 3\newline(x+4)2+19=3+19(x + 4)^2 + 19 = 3 + 19\newlinex2+8x+16+19=22x^2 + 8x + 16 + 19 = 22\newlinex2+8x+35=22x^2 + 8x + 35 = 22\newlineThis does not match the simplified equation x28x19x^2 - 8x - 19.
  8. Adjust Third Choice: Add 1919 to both sides of the third choice to see if it matches the simplified equation:\newline(x+4)2=35(x + 4)^2 = 35\newline(x+4)2+19=35+19(x + 4)^2 + 19 = 35 + 19\newlinex2+8x+16+19=54x^2 + 8x + 16 + 19 = 54\newlinex2+8x+35=54x^2 + 8x + 35 = 54\newlineThis does not match the simplified equation x28x19x^2 - 8x - 19.
  9. Adjust Fourth Choice: Add 1919 to both sides of the fourth choice to see if it matches the simplified equation:\newline(x4)2=3(x - 4)^2 = 3\newline(x4)2+19=3+19(x - 4)^2 + 19 = 3 + 19\newlinex28x+16+19=22x^2 - 8x + 16 + 19 = 22\newlinex28x+35=22x^2 - 8x + 35 = 22\newlineSubtract 2222 from both sides to get the simplified equation:\newlinex28x+3522=0x^2 - 8x + 35 - 22 = 0\newlinex28x+13=0x^2 - 8x + 13 = 0\newlineThis does not match the simplified equation x28x19x^2 - 8x - 19.
  10. Correct Approach: Realize that a mistake was made in the previous steps. The correct approach is to compare the given equation x28x12=7x^2 - 8x - 12 = 7 with the choices by first bringing the equation to the form x28x=19x^2 - 8x = 19 (by adding 1212 to both sides and then subtracting 77 from both sides). Then, we should look for a choice that, when simplified, has the form x28x=19x^2 - 8x = 19.

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