3x+6
5x-15
x2-9
5(D)
(x-3)([
(x+2)
(x+3)(x+2)
x2 +5x+6
(5)(3)
(x+3)(x+3)
x2 +6x+9
please answer my question
5x-15
x2-9
5(D)
(x-3)([
(x+2)
(x+3)(x+2)
x2 +5x+6
(5)(3)
(x+3)(x+3)
x2 +6x+9
please answer my question
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Answer:
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Answer:
3x+6=0
3x=6
3x/3=6/3
x=2
5x+15=0
5x=15
5x/5=15/5
x=3
x²-9=0
x²=9
√x²=√9 (ratio of x² and 9)
x=3
(x+3)(x+2)
use FOIL
F- (x)(x) =x²
O-(x)(2)=2x
I- (3)(x)=3x
L-(3)(2)=6
=x²+2x+3x+6
=x²+5x+6
5×3=15