Multiply: $$( y - 6 ) ( y + 14 )$$
A) $y ^ { 2 } + 20 y - 84$
B) $y ^ { 2 } + 8 y - 20$
C) $y ^ { 2 } + 20 y - 14$
D) $y ^ { 2 } + 8 y - 84$
E) $y ^ { 2 } + 6 y - 8$

Question

Quizplus · Accepted Answer

Use FOIL (First, Outer, Inner, Last) method to multiply:
$$y\times y = y^2$$
$$y \times 14 = 14y$$
$$-6 \times y = -6y$$
$$-6 \times 14 = -84$$
Combine the terms:$$y^2 + (14y - 6y) - 84 = y^2 + 8y - 84$$
Therefore, the answer is choice D.

Multiply (y−6)(y+14)( y - 6 ) ( y + 14 )(y−6)(y+14)

Multiply $( y - 6 ) ( y + 14 )$