Given:
f(x) = x2 + 8x – 9
g(x) = x² – 2x + 15
What is f(x) – g(x)?
2 answers:
Answer:
(f⋅g)(x)=8x^2−2x−15
Step-by-step explanation:
To find the expression (f*g)(x), multiply f(x) into g(x) using the distribution property.
(f*g)(x) = (2x - 3)(4x + 5) = 8x² - 12x + 10x - 15 = 8x² - 2x - 15
F(x)-g(x)
=(x2 +8x -9)
- (x2 -2x +15)
______________
(do this at calculator)
first , (x2-x2) = 0
second ,(+8x-(-2x)) = 10
third , (-9-(+15))= -24
=0+10x-24
you can try this on calculator by the brackets that i have shown you
in basic math
:when +(- = -
: when -(- = +
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