Question

The function f and g are defined by f(x)=2x+1 and g(x)=5x-1
find fg(-3)​

Answer 1

Answer:

80

Step-by-step explanation:

fg(-3)=(2x-+1)(5x-1)

=10x^2-2x+5x-1

=10(-3)^2-2(-3)+5(-3)-1

=10×9+6-15-1

=90+6-16

=96-16

80