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Leno4ka [110]
3 years ago
5

What’s the answer??

Mathematics
1 answer:
astra-53 [7]3 years ago
7 0
Use parentheses for M and N
(5x {}^{2} + 7x - 4 )- ( - 3 {x}^{2} - 4x + 5)
一一一一一
remove parentheses
5 {x}^{2} + 7x - 4 + 3 {x}^{2} + 4x - 5
一一一一一
add like terms
8 {x}^{2} + 11x - 9
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Answer:

90/23

Step-by-step explanation:

First, you want to start in the parentheses. 5-6=-1, then multiply it by -2. Since a negative multiplied by a negative is a positive, -2*-1=2. -3^2=-9. 2+8=10. Then -9 times 10= -90. Then, we move on to the bottom. 5--2=7. 4^2=16, and -2(2)=-4. So -5(7) + 16-4=-23. Now, the equation should look like this, -90/-23. Put the negatives together and you get 90/23.

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3 years ago
Can someone help me out with number 2?
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Find the missing side length.<br> 9<br> 37°<br> 6
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Step-by-step explanation:

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