Question

16x^2+25-40x factorise ​

Answer 1

$16 {x}^{2} + 25 - 40x \\ = 16 {x}^{2} - 40x + 25 \\ = 16 {x}^{2} - 20x - 20x + 25 \\ = 4x(4x - 5) - 5(4x - 5) \\ = (4x - 5) {}^{2}$

Answer 2

Answer:

Step-by-step explanation:

Let us explain this

16x^2-40^x+25

16x^2-20x -20x+25

4x(4x-5)-5 (4x-5)

(4x-5)^2