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April 18, 2014

Homework Help: algebra

Posted by anonymous on Wednesday, August 16, 2006 at 10:14pm.

Solve the given equations:

1. |2x-5|= 29
Answer: x=17
or is it........
x=-12

2. 5(x+3)-2x = -21
Answer: x=-12

3. 3x+3(1-x)= x-17
Answer: x=20

4. 2[1-3(x+2)] = -x
Answer: x= -2

Factor Completely:
1. x^2-12x+20
Answer: (x-2)(x-10)

2. x^2-x-20
Answer: (x-5)(x+4)

3. x^2-49
Answer: (x+7)(x-7)

4. 4x^2-5x-6
Answer: (4x+3)(x-2)


1. |2x-5|= 29
Answer: x=17
or is it........
x=-12

2x = 29 + 5 = 34
x = 34/2 = 17

The others look ok.

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