Question

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Answer 1

1) 5х²-45=5(x²-9)
2)3a²-75b²=3(a²-25b²)
3)5a²+10ab+5b²=(√5 a+√5 b)²=(√5 a+√5 b)(√5 a+√5 b)
4)ax²-2axy+ay²=(√a x-√a y)²=(√a x-√a y)(√a x-√a y)
5)x³+2x²+x=x(x²+x+1)
6) 6a²+12ab-6b²=6(a²+2ab-b²)
7) 16x⁴-81=(4x²-9)(4x²+9)
8) x²-x-y²-y=(x-y)(x+y)
9)x²+2xy+y²-m²=(x+y)²-m²=(x+y-m)(x+y+m)
10) x⁶-y⁶=(x³)²-(y³)²=(x³-y³)(x³+y³)