Question

Which expression is equivalent to -4(5x - 9) + 6(2x + 5)?

Answer 1

-4(5x - 9) + 6(2x + 5)

multiplication of:

(-).(-) = +

(-).(+) = -

(+).(-) = -

(+).(+) = +

-4(5x) -4(- 9) + 6(2x + 5)

(-)(+)4(5x) (-)(-)4(9) (+)(+) 6(2x) (+)(+)6( 5)

-20x + 36 + 12x + 30

-20x + 12x + 36 + 30

-8x + 66

Explanation: