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Paul [167]
3 years ago
9

Someone help plz? Will mark brainiest!

Mathematics
1 answer:
Alex3 years ago
4 0
2. (a+b)²=a²+2ab+b²
(5x-2)²=(5x)²-2×5x×2+2²
(5x-2)²=25x²-20x+4

4. (a+b)²=a²+2ab+b²
(2x+5)²=(2x)²+2×2x×5+5²
(2x+5)²=4x²+20x+25
∵a=4, b=20, c=25
∴a+b+c=4+20+25=49

Hope my answer helped u :)
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Plz answe it is worth 10 points thx
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C

Step-by-step explanation:

4 0
3 years ago
What do you do to find m?
lesya692 [45]
Ok here is how to solve these I hope this helps
7       =      2-5m
+5m           +5m
7+5m =     2
-7               -7
5m      =    -5
/5              /5
m=-1


<span>-Hope this helps :)</span>
8 0
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