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aliina [53]
3 years ago
8

What is the missing term in the factorization?

Mathematics
2 answers:
ludmilkaskok [199]3 years ago
8 0
3(2x+5)(2x-5), 5 is the missing term.

Verdich [7]3 years ago
8 0
ANSWER

The missing term is

5


EXPLANATION


The quadratic expression given to us is

12 {x}^{2}  - 75

We factor 3 to obtain,


12 {x}^{2}  - 75 = 3(4 {x}^{2}  - 25)

We rewrite the expressions in the parenthesis to obtain,

12 {x}^{2}  - 75 = 3( ({2x})^{2}  -  {5}^{2} )



Recall that,


{a}^{2}  -  {b}^{2}  = (a  +  b)(a  -  b)



We apply the difference of two squares formula for the expression in the parenthesis to obtain,

12 {x}^{2}  - 75 = 3(2x  + 5)(2x  -  5) )



By comparing to,



12 {x}^{2}  - 75 = 3(2x  +  ?)(2x  -  5) )



The missing term is 5.

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