Question

Разложите на множетели пж срочно

Answer 1

1) 9х²-4=(3х-2)(3х+2)
2)4а²-20аb+25b²=(2a-5b)²
3) 49-25n²=(7-5n)(7+5n)
4) 9z⁴y⁴-16x²= (3z²y²-4x)(3z²y²+4x)
5)25a⁶-100=25(а⁶-4)=25(а³-2)(а³+2)

Answer 2

$1)9 {x}^{2} - 4 = (3x - 2) \times (3x + 2) \\ 2)4 {a}^{2} - 20ab + 25 {b}^{2} = {(2a - 5b)}^{2} \\ 3)49 - 25 {n}^{2} = (7 - 5n) \times (7 + 5n) \\ 4)9 {z}^{4} {y}^{4} - 16 {x}^{2} = (3 {z}^{2} {y}^{2} - 4x) \times (3 {z}^{2} {y}^{2} + 4x) \\ 5)25 {a}^{6} - 100 = (5 {a}^{3} - 10) \times (5 {a}^{3} + 10)$