Q37. Factorise : (i) x2 + 14x + 49 (ii) 4y2 + 20y + 25
Answers
Answered by
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Step-by-step explanation:
1. x² + 14x + 49
x²+7x+7x+(7)²
x(X+7)+7(X+7)
=( X+7)(X+7)
= (X+7)²
2. 4y² + 20y + 25
4y²+10y+10y+(5)²
= 2y(2y+5)+5(2y+5)
= (2y+5)(2y+5)
= (2y+5)²
hope it helpful
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