SOLUTION: we are discussing factoring and we have to solve these problems
4. 5x^2 = 6x - 16x^2
5. 6x^2 + 24x = 2x^2 - 36
6. 3x^2 - 17x + 20 = 0
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Question 155492This question is from textbook elementary and intermediate algebra
: we are discussing factoring and we have to solve these problems
4. 5x^2 = 6x - 16x^2
5. 6x^2 + 24x = 2x^2 - 36
6. 3x^2 - 17x + 20 = 0
This question is from textbook elementary and intermediate algebra
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
4. 5x^2 = 6x - 16x^2
5x^2+16x^2-6x=0
21x^2-6x=0
3x(x-6)=0
3x=0
x=0 Answer
x-6=0
x=6 Answer.
--------------------------------------
5. 6x^2 + 24x = 2x^2 - 36
6x^2-2x^2+24x+36=0
4x^2+24x+36=0
4(x^2+6x+9)=0
4(x+3)(x+3)=0
x+3=0
x=-3 Answer.
-----------------------------------------
6. 3x^2 - 17x + 20 = 0
(3x-5)(x-4)=0
3x-5=0
3x=5
x=5/3 Answer.
x-4=0
x=4 Answer.
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