Answer:
-4x^2+5x-28
Step-by-step explanation:
Expand -7(x^2 +4) = 3x^2+5x-7x^2-28
Simplify 3x^2+5x-7x^2-28 = -4x^2+5x-28
Answer:
x=7
Step-by-step explanation:
Add 10 to both sides to isolate x.
4x=28
x=7
#1 shop A would be cheaper
2x^(3)y+7xy-3x^(2)-12y
is in standard form
Answer:
Constants: 7 and 12
Coefficients: 4
Step-by-step explanation:
A constant is number without a variable next to it, while a coefficient is a number with a variable next to it.
