Instructions: Multiply.
01
of 05
(x + 3)(x - 3)
(x + 3)(x - 3) = x^{2} + -9
- Rewrite the minus sign.
(x + 3)(x + -3) - First. Outer. Inner. Last.
x * x + x * -3 + 3 * x + 3 * -3 - Multiply.
x^{2} + -3x + 3x + -9 - Simplify.
x^{2} + 0 + -9
x^{2} + -9
02
of 05
(x - 6)(x + 4)
(x - 6)(x + 4) = x^{2} + -2x + -24
- Rewrite the minus sign.
(x + -6)(x + 4) - First. Outer. Inner. Last.
x * x + x * 4 + -6 * x + -6 * 4 - Multiply.
x^{2} + 4x + -6x + -24 - Simplify.
x^{2} + -2x + -24
03
of 05
(x - 8)(x - 9)
(x - 8)(x - 9) = x^{2} + -17x + 72
- Rewrite the minus signs.
(x + -8)(x + -9) - First. Outer. Inner. Last.
x * x + x * -9 + -8 * x + -8 * -9 - Multiply.
x^{2} + -9x + -8x + 72 - Simplify.
x^{2} + -17x + 72
04
of 05
(5j + 11)(j + 1)
(5j + 11)(j + 1)= 5j^{2} + 16j + 11
- First. Outer. Inner. Last.
5j * j + 5j * 1+ 11 * j + 11 * 1 - Multiply.
5j^{2} + 5j + 11j + 11 - Simplify.
5j^{2} + 16j + 11
05
of 05
(5p - 7)(4p + 3)
(5p - 7)(4p + 3)= 20p^{2} + -13p + -21
- Rewrite the minus sign.
(5p + -7)(4p + 3) - First. Outer. Inner. Last.
5p * 4p + 5p * 3 + -7 * 4p + -7 * 3 - Multiply.
20p^{2} + 15p + -28p + -21 - Simplify.
20p^{2} + -13p + -21