Question

Match each equation with its solution set.
Tiles
a2 − 9a + 14 = 0
a^2 + 9a + 14 = 0
a^2 + 3a − 10 = 0
a^2 + 5a − 14 = 0
a^2 − 5a − 14 = 0

{-2, 7}

{2, -7}

{-2, -7}

{7, 2}

Answer 1

factor each equation then its easy

first equation = (a - 7)(a - 2)
so the solution set is {7, 2}