SOLUTION: Solve by factoring. Show work 1) A^2-16a+63=0 2) 2k^2+11k=-5

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: Solve by factoring. Show work 1) A^2-16a+63=0 2) 2k^2+11k=-5       Log On


   

Question 1159958: Solve by factoring. Show work
1) A^2-16a+63=0
2) 2k^2+11k=-5
Answer by ikleyn(52878) About Me  (Show Source):
You can put this solution on YOUR website!
.

            I will solve first equation,  ONLY. 


    a^2 - 16a + 63 = 0


Factor left side


    (a-9)*(a-7) = 0


The roots are  a= 7  and  a= 9.     ANSWER

Solved.


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