Question

256x^2-100
Please show me step by step. I really want to make sure i got this down.Thanks

Answer 1

well this is a quadratic with only 2 terms and no term involving x

so its the difference of 2 squares (a + b)(a-b) = a^2 - b^2

256x^2 = (16x)^2

100 = (10)^2

so the factorisation is (16x - 10)(16x + 10)

Answer 2

thanks very much