Answer:
x = 2.56, y = -2.63
Step-by-step explanation:
I first multiplied the second equation by two, getting
4x-6y = 26
I then subtracted the equations
4x+2y = 5
- 4x-6y = 26
--------------------
8y = -21
y = -2.63
with y solved, I plugged it into the second equation to get x:
2x-3(-2.63) = 13
2x+ 7.89 = 13
2x = 5.11
x = 2.56
I hope this helped! ;D
You mean common factors ?
1,2,5,10
2x squared + -28 is the answer.
Answer:
= -48
Step-by-step explanation:
3x^3 - 8y^2
3 ( 2 )^3 - 8 ( -3 )^2
first you solve the exponents
3 ( 8 ) - 8 ( 9 )
multiply
24 - 72
subtract
= - 48
hope this helps
Answer:
The answer is -6.
Step-by-step explanation:
![2\left(-2^2\right)+2\\-2^2\\=-4\\=2\left(-4\right)+2\\2\left(-4\right)\\2\left(-4\right)=-2\cdot \:4=-8\\=-8\\=-8+2\\-8+2\\-8+2=-6\\=-6](https://tex.z-dn.net/?f=2%5Cleft%28-2%5E2%5Cright%29%2B2%5C%5C-2%5E2%5C%5C%3D-4%5C%5C%3D2%5Cleft%28-4%5Cright%29%2B2%5C%5C2%5Cleft%28-4%5Cright%29%5C%5C2%5Cleft%28-4%5Cright%29%3D-2%5Ccdot%20%5C%3A4%3D-8%5C%5C%3D-8%5C%5C%3D-8%2B2%5C%5C-8%2B2%5C%5C-8%2B2%3D-6%5C%5C%3D-6)