Answer:
Step-by-step explanation:
6x+3x= -2
9x= -2
x= -2/9
The expression that represents the volume of a rectangular prism with length 2x^2, width 2x^3, and height 5x should be in accordance to the formula of volume of a rectangular prism which is V = lwh. Thus, it should be
V=2x^2(<span>2x^3)(5x) = 20x^6 -------> OPTION D</span>
Answer:
x=5, -1
Step-by-step explanation:
I think you mean 2x^2-8x-10=0
2x^2-8x-10=0
Factor out a 2 (0/2 is still 0)
2(x^2-4x-5)=0
Divide by 2
x^2-4x-5=0
Find something that MULTIPLIES to get -5 and ADDS up to get -4, then factor
(x-5)(x+1)=0
Make each set =0
x-5=0
x+1=0
x=5, -1