Thursday

January 29, 2015

January 29, 2015

Posted by **Victoria** on Monday, May 12, 2014 at 7:39pm.

Write each equation in standard form. Solve by using the Quadratic Formula.

1. -7 = x^2

- Algebra 1 (Step-by-Step) -
**Steve**, Monday, May 12, 2014 at 9:07pmthis has been answered already. Reiny just stated that since x^2 is always positive, there's no real value of x which can produce -7 when squared.

Damon actually wrote the quadratic in standard form, applied the formula and gave the complex solutions.

http://www.jiskha.com/display.cgi?id=1399935086

Just what is it that is still bothering you?

- Algebra 1 (Step-by-Step) -
**Henry**, Monday, May 12, 2014 at 9:40pm1. -7 = X^2

x^2 + 7 = 0

X =( -B +- sqrt(B^2-4AC))/2A

X = (0 +- sqrt(0-28))/2 =

sqrt(28*(-1))/2 = 5.29i/2 = +-2.65i

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