Question

Lorne subtracted 6x3 – 2x + 3 from –3x3 + 5x2 + 4x – 7. Use the drop-down menus to identify the steps Lorne used to find the difference

Answer 1

(6 • 3 - 2x +3) - (-3 • 3 + 5 • 2 + 4x - 7)

first lorne added all binomials

(21 - 2x) - (-6 + 4x)

then took away the parentheses

21 - 2x + 6 + 4x

added them again o_o

27 + 2x

and ended up you her answer, shown above