X^2-81=x^2-9^2=(x+9)(x-9)
this is the answer
Answer:
42*7
Step-by-step explanation:
Answer:
9x
Step-by-step explanation:
3y +2x-3y +7x
Combine like terms
2x+7x +3y-3y
(2+7)x +(3-3)y
9x +0y
9x
Answer:
Step-by-step explanation:
<u>Solve for x:</u>
- 1/2 (4x - 8) + 3x = 36
- 2x - 4 + 3x = 36
- 5x - 4 = 36
- 5x = 40
- x = 40/5
- x = 8
Answer:
(2,-5)
Step-by-step explanation: