Answer:
C : -6
Step-by-step explanation:
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Answer:
x = 1/3, x = -1.
Step-by-step explanation:
2x(x + 2) + (x - 1)² = 2
Distribute the 2x into x + 2.
2x² + 4x + (x - 1)² = 2
Square (x - 1).
2x² + 4x + x² - x - x + 1 = 2
Combine terms.
2x² + x² + 4x - 2x + 1 = 2
Combine terms again.
3x² + 2x + 1 = 2
Subtract 2 from both sides.
3x² + 2x - 1 = 0
Factor.
(3x - 1)(x + 1) = 0.
Finding the x-values here is the same thing as finding the 0s, so set both of the expressions to 0.
3x - 1 = 0
Add 1 to both sides.
3x = 1
Divide by 3.
x = 1/3.
x + 1 = 0
Subtract 1 from both sides.
x = -1.
Answer:
She could work as a tutor for 7 hours the hole week and she would get $105 that week! All you have to do to solve that is multiply all the choices you can think of and see what is over $75.
The expression is:
Simplify the expression:
1. Multiply the exponent outside the parenthesis with every exponent inside the parenthesis,
Since, exponents in negative form are express as fraction with 1 as numerator.
Answer: 1/81d^(-20)
Answer:
4
Step-by-step explanation:
We need to form an equation to find the value of the number. We can call this number x:
÷ 
= 64 - because the base of the powers are the same we can simplify it
= 64
x = ∛64
x = 4
