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[tex]\blue\textsf{\textbf{\underline{\underline{Question:-}}}}[/tex]
Factor x²+x-42
[tex]\blue\textsf{\textbf{\underline{\underline{Answer and How to Solve:-}}}}[/tex]
First, think of two numbers such that
- If we multiply them we'll get -42
- If we add them we'll get 1
These numbers are:-
7 and -6
Write them here:-
(x+7)(x-6)
Note:-
We don't have to use the Big X method, since the coefficient of x² is 1.
If it's greater than 1, like 2, then the Big X method comes in handy.
Good luck.
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Answer:
1. 7x-6x
2. x+7
3. 6
4.(x-6)(x+7)
5. multiply
Step-by-step explanation:
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