Question

1. Multiply the following binomials.
(a) (5a + 11b)(8 + 9b)
(b) (13xy - 3z)(15xy - 8z)​

Answer 1

Step-by-step explanation:

a). (5a+11b)(8+9b)

=40a+45ab+88b+99b^2

b)(13xy-3z)(15xy-8z)

=195x^2y^2-104xyz-45xyz+24z^2

=196x^2 y^2 -149xyz+24z^2