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Which equation has the same solution as 
x^(2)+4x-16=-4 ?

(x-2)^(2)=16

(x+2)^(2)=16

(x-2)^(2)=8

(x+2)^(2)=8

Which equation has the same solution as x2+4x16=4 x^{2}+4 x-16=-4 ?\newline(x2)2=16 (x-2)^{2}=16 \newline(x+2)2=16 (x+2)^{2}=16 \newline(x2)2=8 (x-2)^{2}=8 \newline(x+2)2=8 (x+2)^{2}=8

Full solution

Q. Which equation has the same solution as x2+4x16=4 x^{2}+4 x-16=-4 ?\newline(x2)2=16 (x-2)^{2}=16 \newline(x+2)2=16 (x+2)^{2}=16 \newline(x2)2=8 (x-2)^{2}=8 \newline(x+2)2=8 (x+2)^{2}=8
  1. Simplify Equation: First, we need to simplify the given equation x2+4x16=4x^2 + 4x - 16 = -4 by moving all terms to one side to set the equation to zero.\newlinex2+4x16+4=0x^2 + 4x - 16 + 4 = 0\newlinex2+4x12=0x^2 + 4x - 12 = 0
  2. Factor Quadratic: Now, we need to factor the quadratic equation x2+4x12x^2 + 4x - 12. We look for two numbers that multiply to 12-12 and add up to 44. These numbers are 66 and 2-2. (x+6)(x2)=0(x + 6)(x - 2) = 0
  3. Find Solutions: Next, we set each factor equal to zero to find the solutions for xx.x+6=0x + 6 = 0 or x2=0x - 2 = 0So, x=6x = -6 or x=2x = 2
  4. Compare with Choices: Now, we need to compare the solutions x=6x = -6 and x=2x = 2 with the choices given to see which equation has the same solutions.\newlineThe choices are:\newline11. (x2)2=16(x - 2)^2 = 16\newline22. (x+2)2=16(x + 2)^2 = 16\newline33. (x2)2=8(x - 2)^2 = 8\newline44. (x+2)2=8(x + 2)^2 = 8
  5. Analyzing Choice 11: Let's analyze the first choice: x - 2)^2 = 16\. Taking the square root of both sides, we get \$x - 2 = \pm4. So, x=2+4x = 2 + 4 or x=24x = 2 - 4, which gives us x=6x = 6 or x=2x = -2. This does not match our solutions of x=6x = -6 or x=2x = 2.
  6. Analyzing Choice 22: Next, let's analyze the second choice: (x+2)2=16(x + 2)^2 = 16. Taking the square root of both sides, we get x+2=±4x + 2 = \pm4. So, x=2+4x = -2 + 4 or x=24x = -2 - 4, which gives us x=2x = 2 or x=6x = -6. This matches our solutions of x=6x = -6 or x=2x = 2.
  7. No Need to Analyze: We do not need to analyze the 3rd3^{rd} and 4th4^{th} choices because we have already found a match with the 2nd2^{nd} choice.

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