The sum of three times a number and it's square is eight more than five times the number what is the number?
Answers
Answered by
0
Answer:
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Step-by-step explanation:
Answered by
0
Answer:
4
Step-by-step explanation:
3x + x² = 5x + 8
x² + -2x - 8 = 0
(x-4)(x+2) = 0
x-4 = 0
x = 4
x+2 = 0
x = -2
use x = 4
check:
3(4) + (4)² = 5(4) + 8
28 = 28
HOPE IT HELPS YOU
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