Algebra Help 3?

5 ⤊

Find the number which subtracted from its square equals 56?

2006-10-28 11:26:19 · 5 answers · asked by jrrkidd 1 in Science & Mathematics ➔ Mathematics

8, or -7 is the correct answer
x^2 - x = 56
x^2 - x - 56=0
(x-8)(x+7) = 0

x = 8 or x = -7

8^2 - 8 = 64 - 8 = 56 and
(-7)^2 - (-7) = 49 - (-7) = 56

2006-10-28 11:28:58 · answer #1 · answered by Scott R 6 · 3⤊ 1⤋

2006-10-28 18:27:36 · answer #2 · answered by Anonymous · 0⤊ 3⤋

8
The square rrot of 8 is 64.64-8=56.

You need a lot of math help.

2006-10-28 19:25:17 · answer #3 · answered by alexis.=) 4 · 0⤊ 1⤋

8.

8^2 = 64
64-8=56

2006-10-28 18:28:41 · answer #4 · answered by Random 3 · 1⤊ 1⤋

Scott R has it

2006-10-28 18:36:44 · answer #5 · answered by veronica_pilcher 2 · 1⤊ 0⤋