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egracer
 one year ago
A binomial has been partially factored, as shown below:
x2 − 49 = (x + 7)(_____)
Which of the following binomials represents the missing factor?
(x + 42)
(x − 42)
(x + 7)
(x − 7)
egracer
 one year ago
A binomial has been partially factored, as shown below: x2 − 49 = (x + 7)(_____) Which of the following binomials represents the missing factor? (x + 42) (x − 42) (x + 7) (x − 7)

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campbell_st
 one year ago
Best ResponseYou've already chosen the best response.1its the difference of 2 squares \[a^2  b^2 = (a + b)(a  b)\]

egracer
 one year ago
Best ResponseYou've already chosen the best response.0so what would I do the figure this out... I'm a little confused on binomials

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2look carefully at the formula campbell_st wrote out

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2it might help to rewrite 49 as 7^2

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.1well if you had \[x^2  a^2 = (x a)(x + ?)\]

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2correct x^2  49 = (x+7)(x7)
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