SOLUTION: This is multiplying binomials mentally, my problem is (x+5)(x+2), when I solved it, I got x^2+3+10. Am I way off, or am I close to the right answer. Please help me. Thank You=)

Question 147449This question is from textbook algebra
: This is multiplying binomials mentally, my problem is (x+5)(x+2), when I solved it, I got x^2+3+10. Am I way off, or am I close to the right answer. Please help me. Thank You=) This question is from textbook algebra

Answer by vleith(2983) (Show Source): You can put this solution on YOUR website!
Given
To do these 'in your head', you need to look at the coefficients on the x terms. In this case, both are equal to 1. So, the resulting coefficient on the term will be = 1
Now let's do the constant term:
By looking at the two constants (5 and 2), you can see the last term will be the product of = 10.
The hardest part if figuring out what the middle term, the term will be. For that you need to realize that coefficient is a sum or difference of two products. In our case, since both terms have a + sign in them, the resulting x term will be a sum. It is the sum of + = = 7.
So the answer is
If you need a place to verify this type of answer, go here --> http://www.hostsrv.com/webmab/app1/MSP/quickmath/02/pageGenerate?site=quickmath&s1=algebra&s2=expand&s3=basic
That won;t show you the intermediate steps, but will allow you to verify the accuracy of your result.
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