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avatar+321 
The expression $x^2 + 13x + 30$ can be written as $(x + a)(x + b),$ and the expression $x^2 + 5x - 50$ written as $(x + b)(x - c)$, where $a$, $b$, and $c$ are integers. What is the value of $a + b + c$?
 Jul 10, 2020
 #1
avatar+27660 
+1

(x+3)(x+10)       and     (x+10)(x-5)        you can do the   a + b + c  part

 Jul 10, 2020

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