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What is X^2 - x - 42

Sagot :

Lucyheartfilia0415

Answer:

1. Factoring: (x - 7)(x + 6).

2. Solving for x: x = -6 and x = 7

Step-by-step explanation:

I'm not exactly sure what your question is so I'll assume it's either this:

1. Factor [tex]x^{2} - x - 42[/tex]

2. Solve for x in the equation [tex]x^{2} - x - 42 = 0[/tex]

1. Factoring

[tex]x^{2} - x - 42[/tex]

(x - 7)(x + 6) is the answer.

The way I factored it was by finding a pair of numbers that product is -42 and has a sum of -1.

2. Solving for x

[tex]x^{2} - x - 42 = 0[/tex]

(x - 7)(x + 6) = 0

a. x - 7 = 0

x = 7

b. x + 6 = 0

x = -6

Answers: x = -6, x = 7

Hope this answered your question! <3

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