Solve.
-The sum of a number and its square is 20 . Find the number.
A) 4 or 5
B) 4 or $- 5$
C) $- 4$ or 5
D) $- 4$ or $- 5$

Name: Solve. -The sum of a number and its square is 20 . Find the number. A) 4 or 5 B) 4 or $- 5$ C) $- 4$ or 5 D) $- 4$ or $- 5$
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Question

Quizplus · Accepted Answer

The equation can be written as $x^2 + x - 20 = 0$. Factoring this gives $(x + 5)(x - 4) = 0$, so the solutions are $x = -5$ and $x = 4$.

Solve -The Sum of a Number and Its Square Is −5- 5−5

Solve
-The Sum of a Number and Its Square Is $- 5$