1. Solve x2 + 16 = 10x
3. Solve 50 x2 - 72 = 0
5. Solve (x + 3)(x - 5) = -7
Answers
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Step-by-step explanation:
1. 2x+16=10x
16=10x-2x
16=8x
8x=16
x=16/8
x=2
3. 50*2-72=0
100-72=0
28=0
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