Question

factorise (1+7x)^2 + (49x^square-1)

Answer 1

Answer:

$14x(7x + 1)$

Step-by-step explanation:

${(1 + 7x) }^{2} + (49 {x}^{2} - 1) \\ 1 + 14x + 49 {x}^{2} + 49 {x}^{2} - 1 \\ 98 {x}^{2} + 14x \\ 14x(7x + 1)$

Hope it helps you!!!