SOLUTION: Please help me solve the following equations by using the method of factorization. 1) Solve: 2x^2 - 7x - 15 = 0 using the method of factorization. ( Solve by factoring).

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Please help me solve the following equations by using the method of factorization. 1) Solve: 2x^2 - 7x - 15 = 0 using the method of factorization. ( Solve by factoring).       Log On


   

Question 196658: Please help me solve the following equations by using the method of factorization.

1) Solve: 2x^2 - 7x - 15 = 0 using the method of factorization. ( Solve by factoring).


2) Solve: (5x + 2)^2 = 9


3) Solve: x^2 - 12x + 32 = 0.


4) Solve: x/(x - 1) = (x + 5)/x
Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
Use this URL --> http://72.3.253.76:8080/webMathematica3/quickmath/page.jsp?s1=algebra&s2=factor&s3=basic
For problem one, enter 2x^2 - 7x - 15 and click Factor. Once you have the terms, set each term =0 and solve
2x%5E2+-+7x+-+15
%282x+%2B3%29%28x-5%29
2x+3 = 0 ==> x = -3/2
x-5 = 0 ==> x = 5
for 2) put it in the form (5x + 2)^2 - 9 and then click factor. The solve as above
3)x^2 - 12x + 32, then click factor. solve as above
4)
x%2F%28x+-+1%29+=+%28x+%2B+5%29%2Fx
x%5E2+=+%28x-1%29%28x%2B5%29
x%5E2+=+x%5E2+%2B+4x+-+5
0+=+4x-5
x+=+5%2F4