Question

1)11m²- 11; 2)6а³ - 6а; 3)5х³ - 5ху²; 4)8a²b² - 72a²c²; 5)2х² + 12ху + 72у²; 6)- 8а⁵ + 8а³ - 2а.

Answer 1

$11m^2-11=11(m-1)(m+1);\6a^3-6a=6a(a-1)(a+1);\5x^3-5xy^2=5x(x-y)(x+y);\8a^2b^2-72a^2c^2=8a^2(b-3c)(b+3c);\2x^2+12xy+72y^2=2(x^2+6xy+36)=2(x+6)^2\-8a^5+8a^3-2a=-2a(4a^4-4a^2+1)=2a(2a^2-1)^2$