(x - 3) (x + 7) = x^2 + _____ + 21
Answers
Answered by
1
Step-by-step explanation:
(x - 3) (x + 7) = x^2 + _4x____ - 21
= x^2 + 7x - 3x - 21
= x^2 + 4x - 21
Similar questions