SOLUTION: What are two consecutive intergers whose product is 90?

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Question 76043This question is from textbook Algebra 1 Expressions, Equations, and Applications
: What are two consecutive intergers whose product is 90? This question is from textbook Algebra 1 Expressions, Equations, and Applications

Answer by checkley75(3666) About Me  (Show Source):
You can put this solution on YOUR website!
X(X+1)=90
X^2+X-90=0
(X+10)(X-9)=0
X+10=0
X=-10 ANSWER
X-9=0
X=9 ANSWER
THERE ARE TWO ANSWERS HERE:
-10*-9=90
10*9=90