Multiply (x + 3)(x - 7)

We have to multiply (x+3)(x-7)

Solution

To multiply these two terms you multiply each individual term in the left parenthesis by each individual term in the right parenthesis.

(x+3)(x-7)

=x (x-7) +3 (x-7)

= x² – 7x + 3x -21

= x² -4x -21

Answer

(x+3)(x-7) = x² -4x -21