Answer:
The equivalent expression is 3x^5-9x^3-2
Step-by-step explanation:
To find the equivalent expression, we need to
open up the brackets;
Thus;
x^2(3x^3 -2x) - (7x^3 + 2)
= 3x^5 -2x^3 -7x^3 -2
= 3x^5 -9x^3-2
Ok so here u go
<span>Simplifying
6(2x + -11) + 15 = 21 Reorder the terms:
6(-11 + 2x) + 15 = 21
(-11 * 6 + 2x * 6) + 15 = 21
(-66 + 12x) + 15 = 21 Reorder the terms:
-66 + 15 + 12x = 21 Combine like terms: -66 + 15 = -51
-51 + 12x = 21 Solving
-51 + 12x = 21
Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right.
Add '51' to each side of the equation.
-51 + 51 + 12x = 21 + 51
Combine like terms: -51 + 51 = 0
0 + 12x = 21 + 51
12x = 21 + 51 Combine like terms: 21 + 51 = 72
12x = 72
Divide each side by '12'.
x = 6
Simplifying
x = 6</span>
Answer:
a) (4x® - 5x + 15) - (11 - 7x - 2x)
b)(9x- 6x® - 7x-2) + (10x - 8x + 11)
Step-by-step explanation:
a) (4x® - 5x + 15) - (11 - 7x - 2x)
b)(9x- 6x® - 7x-2) + (10x - 8x + 11)
Answer:
The volume of the rectangular prism is 7/8 u³
Step-by-step explanation:
1/2 u²
= 0.5 u²
1 3/4 u = 1.75 u
To calculate the volume of a rectangular prism we have to use the following formula:
a = area = 0.5 u²
v = volume
h = height = 1.75 u
v = a * h
we replace the values that we know
v = 0.5 u² * 1.75 u
v = 0.875 u³ = 7/8 u³
The volume of the rectangular prism is 7/8 u³
Answer:
8.15
Step-by-step explanation:
