Answer:
Step-by-step explanation:
x(7x^2+4x) can be expanded by multiplying each of the two terms inside the parentheses by x:
x(7x^2+4x) = 7x^3 + 4x^2
To solve this problem, we need to simplify to get x.
x ÷ 2 + 8 = 23
x ÷ 2 = 15
x = 30
Hope this helps!
x2 +3x-40= x2+8x-5x-40=x(x+8)-5(x+8)=. (x+8) (x-5).
Answer:
3
Step-by-step explanation:
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