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Which equation has the same solution as 
x^(2)+x-11=-7 ?

(x-0.5)^(2)=3.75

(x+0.5)^(2)=4.25

(x+0.5)^(2)=3.75

(x-0.5)^(2)=4.25

Which equation has the same solution as x2+x11=7 x^{2}+x-11=-7 ?\newline(x0.5)2=3.75 (x-0.5)^{2}=3.75 \newline(x+0.5)2=4.25 (x+0.5)^{2}=4.25 \newline(x+0.5)2=3.75 (x+0.5)^{2}=3.75 \newline(x0.5)2=4.25 (x-0.5)^{2}=4.25

Full solution

Q. Which equation has the same solution as x2+x11=7 x^{2}+x-11=-7 ?\newline(x0.5)2=3.75 (x-0.5)^{2}=3.75 \newline(x+0.5)2=4.25 (x+0.5)^{2}=4.25 \newline(x+0.5)2=3.75 (x+0.5)^{2}=3.75 \newline(x0.5)2=4.25 (x-0.5)^{2}=4.25
  1. Simplify the Equation: First, we need to simplify the given equation x2+x11=7x^2 + x - 11 = -7 by adding 77 to both sides to isolate the xx terms on one side.\newlinex2+x11+7=7+7x^2 + x - 11 + 7 = -7 + 7\newlinex2+x4=0x^2 + x - 4 = 0
  2. Check First Option: Now, we need to determine which of the provided equations, when simplified or expanded, will result in the same quadratic equation as x2+x4=0x^2 + x - 4 = 0. Let's start with the first option: (x0.5)2=3.75(x - 0.5)^2 = 3.75. Expanding (x0.5)2(x - 0.5)^2 gives us: (x0.5)(x0.5)=x2x+0.25(x - 0.5)(x - 0.5) = x^2 - x + 0.25 This does not match our simplified equation x2+x4x^2 + x - 4.
  3. Check Second Option: Next, let's consider the second option: x + 0.5)^2 = 4.25\. Expanding \$x + 0.5)^2 gives us: \$x + 0.5)(x + 0.5) = x^2 + x + 0.25\ This also does not match our simplified equation \$x^2 + x - 4.
  4. Check Third Option: Now, let's look at the third option: (x+0.5)2=3.75(x + 0.5)^2 = 3.75.\newlineExpanding (x+0.5)2(x + 0.5)^2 gives us:\newline(x+0.5)(x+0.5)=x2+x+0.25(x + 0.5)(x + 0.5) = x^2 + x + 0.25\newlineTo match our simplified equation x2+x4x^2 + x - 4, we need to see if 0.250.25 is equal to 3.753.75 when we move it to the other side of the equation.\newlinex2+x+0.250.25=3.750.25x^2 + x + 0.25 - 0.25 = 3.75 - 0.25\newlinex2+x=3.5x^2 + x = 3.5\newlineThis does not match our simplified equation x2+x4x^2 + x - 4.
  5. Check Fourth Option: Finally, let's examine the fourth option: x0.5)2=4.25.(x - 0.5)^2 = 4.25.(\newlineExpanding \$x - 0.5)^2 gives us:\ \$x - 0.5)(x - 0.5) = x^2 - x + 0.25(\newline\)To match our simplified equation \$x^2 + x - 4\), we need to see if \(0.25\) is equal to \(4.25\) when we move it to the other side of the equation.(\newline\)\(x^2 - x + 0.25 - 0.25 = 4.25 - 0.25\)(\newline\)\(x^2 - x = 4\)(\newline\)This does not match our simplified equation \(x^2 + x - 4\) either.
  6. Reevaluate Third Option: It seems that none of the provided options exactly match the simplified equation \(x^2 + x - 4 = 0\). However, we may have made a mistake in our calculations. Let's recheck the third option: \((x + 0.5)^2 = 3.75\).\(\newline\)Expanding \((x + 0.5)^2\) gives us:\(\newline\)\((x + 0.5)(x + 0.5) = x^2 + x + 0.25\)\(\newline\)Now, subtracting \(0.25\) from both sides to match our simplified equation:\(\newline\)\(x^2 + x + 0.25 - 0.25 = 3.75 - 0.25\)\(\newline\)\(x^2 + x = 3.5\)\(\newline\)This is incorrect, as we need the constant term to be \(-4\), not \(3.5\). Therefore, there is a math error in our previous step.

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