Answer:
x² - 7x - 18
Step-by-step explanation:
Remember to follow FOIL.
First, multiply the first. (x)(x) = x²
Next, multiply the second. (x)(2) = 2x
Then, multiply the third. (-9)(x) = -9x
Finally, multiply the last. (-9)(2) = -18
Combine like terms: x² + 2x - 9x - 18
x² - 7x - 18
x² - 7x - 18 is your answer.
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The answer is D because of the distributive property.
You would distribute x to 19 and -23 to make it equivalent to the given equation
I hope that helps!
Answer:
Store A gives $17.19 more off then Store B
Step-by-step explanation:
573.00 x 25% = 143.25
573.00-143.25 =429.75 Store A
Store B is 446.94
So you want to solve for x?
It would be nice if this would easily factor:
(-4x + 5)(2x +1) = 0 This will not work!
So you need to use the quadratic formula:
a = -8, b = 4, c = 5

x = (-4 +/-

)/2(-8)
= (-4 +/-

)/-16
= (-4 +

)/-16
= 1/4 -

/4
Answer:
134
Step-by-step explanation:
This equation follows y=mx+b
y = output
x = input
(In this case) 8 = slope
(In this case) 134 = y-intercept