The square of a number is 30 more than seven times a number. What is the number?
Answers
Answered by
2
Answer:
it's correct.
Step-by-step explanation:
30 more than seven times a number.
30×7+30=900
900 is the square of 30.
please mark my answer as brilliant.
Answered by
1
Answer:
The numbers can be 10 and -3
Step-by-step explanation:
ATQ
x^2 = 7x + 30
x^2 - 7x - 30 = 0
x^2 - 10x + 3x - 30 = 0
x(x-10) + 3(x-10) = 0
(x-10) (x+3) = 0
x-10 = 0, x+3 = 0
x = 10, -3
I hope it helps....
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