Найдите корни уравнения: а) (х-1) (х+2) (х+10) = 0

б) 36-x^2=0

в) 5x=-20x

г) 8x-4x^2=0

д) x^2=8

е) (x-2) (x+3) = - 6

A) (x - 1) (x + 2) (x + 10) = 0

Произведение равно 0, когда один из множителей равен0, значит,

x - 1 = 0

x = 1

x + 2 = 0

x = - 2

x + 10 = 0

x = - 10

б) - x² = - 36

x² = 36

x = 6

x = - 6

в) 5x = - 20x

5x + 20x = 0

25x = 0

x = 0

г) - 4x² + 8x = 0

4x² - 8x = 0

4x (x - 2) = 0

4x = 0

x = 0

x - 2 = 0

x = 2

д) x² = 8

x = √8 = 2√2

x = - √8 = - 2√2

е) (x - 2) (x + 3) = - 6

x² + x - 6 + 6 = 0

x² + x = 0

x (x + 1) = 0

x = 0

x + 1 = 0

x = - 1