Question

Simplify 4(5x-6)-4(2x+1)

Answer 1

distribution first then combine similar numbers so answer is 12x+20

Answer 2

expand brackets

20x - 24 - (8x + 4)

multiply 2nd bracket by invisible -1

20x - 24 - 8x - 4

collect like terms

12x - 28

therefore the answer is 12x-28