X^2-3x-10. You solve it by foiling. I attached a photo explaining how to do it.
X=5 y=15 (5,15).
This is how you do it:
-4(2x+3y=55): -8x-12y=-220
3(9x+4y=105):27x+12y=315
You add the two new equations together, canceling out the y values, and get the x value. Then, you go back and plug in the x value in the original equation to get the y value.
Answer:
- 16 + ( - 7 )
Step-by-step explanation:
- 16 + ( - 7 ) is same as - 16 - 7.
Answer:
2 and -9
Step-by-step explanation:
2 times -9 is -18
2 plus -9 is -7
Hope this helped!
