factorise X square + 18 x + 32
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Ans = (x+2)(x+16)
Step-by-step explanation:
x^2 + 18x + 32
Since its a quadratic equation, we hv to find the number whose product = 32x^2 and sum = 18x
Thus, 32x^2 = 16x * 2x.... (Product = 32x^2 and Sum = 18x)
Thus, (x^2 + 2x) + (16x +32)
By bringing x outside first bracket... first term = x(x+2)
By bringing 16 outside second bracket... second term = 16(x+2)
Since brackets are of same value....
Ans = (x+2)(x+16)
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