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2. Factorise x^2 + 15 x + 441) (x+11)(x-4)2) (x - 11)(x-4)3) (x+4)(x+11) |
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Answer» d Answer:-Given To Factorise:x² + 15x + 44Solution:Let F(x) = x² + 15x + 44We need to split 15 into two numbers whose sum is 15 and product is 44.By TRIAL and error method, we FOUND, 11 × 4 = 44 and 11 + 4 = 15So, x² + 15x + 44= x² + (11 + 4)x + 44= x² + 11x + 4X + 44= x(x + 11) + 4(x + 11)= (x + 4)(x + 11)★ Hence, the factorised form of polynomial is (x + 4)(x + 11)Answer:Factorised form - (x + 4)(x + 11) |
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