Find the Value of this??? it's algebra for class 8
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Step-by-step explanation:
4x² + 20x + 25 = 0
4x² + 10x + 10x + 25 = 0
2x(2x + 5) + 5(2x + 5) = 0
(2x + 5)(2x + 5) = 0
2x + 5 = 0 , 2x + 5 = 0
2x = -5 , 2x = -5
x = -5/2 , x = -5/2
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4x² + 20x + 25
= 4x² + 25 + 20x
= (2x)² + 5² + 2(5 × 2)
= (2x + 5)²
Since, a² + b² + 2ab = (a + b)²
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