Question

Evaluate the expression x(5-4y²) when x=-4 and y=-4

Answer 1

Step-by-step explanation: a( b - c ) + ab - ac

x(5-4y^2)=x\cdot \:5-x\cdot \:4y^2

=x\cdot \:5-x\cdot \:4y^2

=5x-4xy^2