Thursday

July 31, 2014

July 31, 2014

Posted by **tanya** on Thursday, February 16, 2012 at 12:18pm.

(1)x^2+16x=36

(2)x^2=10x-16

(3)3x=x^2-4

- math -
**Steve**, Thursday, February 16, 2012 at 6:21pmI'll do one by completing the square. Use the same method for the others. Come on back if you run into trouble.

x^2 + 16x = 36

x^2 + 16x + 64 = 36+64

(x+8)^2 = 100

x+8 = ±10

x = -8 ± 10

x = -18,2

**Related Questions**

8th Grade Algebra - You know how to solve quadratic equations using algebra, ...

math - Solve the equation for x 30x+10x-40=16x+8

Math - Solve the equation for x. 30x+10x=40=16x+8

Math - Solve the quadratic equation using any technique you wish. Name the ...

Math - Solve the quadratic equation using any technique you wish. Name the ...

Math - Solve the quadratic equation using any technique you wish. Name the ...

math - factoring to solve quadratic equation 5x^2=16x+45

math - use the quadratic formula to solve the equation: x^2+10x-10=0

Math - Solve the following quadratic equation(as exact values) using the ...

help in math - solve and check each of the following quadratic equation (1) x^2=...