(x+2)^2=x^2+6^2 equals to what
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Answer: x = 8
Step-by-step explanation:
(x + 2)² = x² + 6² [(a + b)² = a² + 2ab + b²]
=> x² + 2 × 2x + 2² = x² + 36
=> 4x + 4 = 36 (x² gets cancelled on both sides)
=> 4x = 36 - 4
=> 4x = 32
=> x = 32 ÷ 4 = 8
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