Multiply the polynomials (5x −7)(3x +8)
(
5x * 3x = 15x^2
5x * 8 = 40x
-7 * 3x = -21x
-7 * 8 = -56
Combine like terms:
15x^2 + 40x - 21x - 56
Simplify:
15x^2 + 19x - 56
(
5x * 8 = 40x
-7 * 3x = -21x
-7 * 8 = -56
Combine like terms:
15x^2 + 40x - 21x - 56
Simplify:
15x^2 + 19x - 56