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x2-16=?

 

 

 

answer please,i need the answer quick please.

 Aug 2, 2017
edited by Guest  Aug 3, 2017
 #1
avatar+7347 
+3

Maybe you want to factor this?

 

    x2 - 16                    This is a "difference of squares," so we can factor it like this...

 

=  (x + 4)(x - 4)

 Aug 3, 2017
 #2
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0

Multiply binomials by polynomials

 

 

(3a​2​​−1)(−3a​2​​+5)=?

 Aug 5, 2017
 #3
avatar+7347 
+3

This is multiplying a binomial by a binomial to get a polynomial.

 

    (3a2 - 1)(-3a2 + 5)                 Multiply each term in the first set of parenthesees by each term in

                                                 the second set of parenthesees and add these products together.

 

=  (3a2)(-3a2) + (3a2)(5) + (-1)(-3a2) + (-1)(5)

 

=       -9a4      +    15a2    +     3a2     +  -5

 

=       -9a4      +             18a2             -    5

hectictar  Aug 5, 2017

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