Okay, I am going to assume you have a basic knowledge of Algebra and just show you how to solve the problem, step by step.6t2 + 13t - 63(3t - 7)(2t + 9)Check:(3t)(2t) - (7)(2t) + (3t)(9) - (7)(9)6t2 - 14t + 27t - 636t2 + 13t - 63
7(4 - 9)
It is: 63-4 = 59
63 minus 21 is 42.
91 - 63 = 28
63 - 10 = 53
100 - 63 = 37
63 - 37 = 26
45 - 63 = -18
-16 - 63 = -79
63 - 18 = 45
111 - 63 = 48