Question

Разложи на множители a-b-5a^2+5b^2

Answer 1

a - b - 5a² + 5b² = (a - b) - 5(a² - b²) = (a - b) - 5(a - b)(a + b)=
=(a - b)(1 - 5(a + b)) = (a - b)(1 - 5a - 5b)

Answer 2

$a-b-5a^2+5b^2=(a-b)-5(a^2-b^2)=(a-b)-5(a-b)(a+b)\=(a-b)(1-5(a+b))=(a-b)(1-5a-5b)$