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Follow the process of completing the square to solve x2 - 10x + 8 = 0.
How will the left side of the equation factor in step 5?

(x - 10)2

(x - 20)2

(2x - 10)2

 

Follow the process of completing the square to solve 2x2 + 8x - 12 = 0.
How will the left side of the equation factor in step 5?

(2x + 32)2

(4x + 8)2

(4x + 16)2

 Jan 28, 2019

Best Answer 

 #1
avatar+140 
+1

x^2+10x+8=0

move 8 to the right by subtracting 8 from both sides.

x^2+10x=-8

b/2  10/2 =5

5^2 =25

add 35 to both sides

x^2+10x+25=-8+25

(x+5)^2=17

x+5=+- (root)17

x=-5+-(root)17

 Jan 28, 2019
 #1
avatar+140 
+1
Best Answer

x^2+10x+8=0

move 8 to the right by subtracting 8 from both sides.

x^2+10x=-8

b/2  10/2 =5

5^2 =25

add 35 to both sides

x^2+10x+25=-8+25

(x+5)^2=17

x+5=+- (root)17

x=-5+-(root)17

Mclovin123 Jan 28, 2019

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