Question

Simplify 2(4a +3b)−3a(4-5b) by expanding the brackets and combining like terms.

Answer 1

6b - 4a + 15ab

Explanation:

2(4a + 3b) - 3a(4 - 5b)

multiply each term in the parenthesis by the number outside

= 8a + 6b - 12a + 15ab ← collect like terms

= 6b + (8a - 12a) + 15ab

= 6b + (- 4a) + 15ab

= 6b - 4a + 15ab