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3 years ago

ALGEBRA 1 HOMEWORK!!!

Mathematics

2 answers:

ale4655 [162]3 years ago

6 0

Answer:

Factoring: (x+4)(x-6), x=-4 or x=6

Quadratic formula: x=6 or x=-4

Step-by-step explanation:

Factoring: (Reverse foil)

x^2-2x-24

because there are two - sign then we know it is

(x+ something)(x- something)

looking at the factors of 24 we can see that 6 and 4 are factors and 6-4=2 so

(x-6)(x+4)must be the factored form.

However the sign of x values in factored form changes when not in parenthesis so it would become x=6, and x=-4

Quadratic formula:

the quadratic formula is [-(b)+or-sqrt(b^2-4(a)(c)]/2(a)

in this case a=1, b=-2, c=-24 so it would be

[2+or-sqrt-2^2-4(1)(-24)]/2(1)=

[2+or-sqrt4-(-96)]/2=

[2+or-sqrt100]/2=

[2+or-10]/2=

1+or-5=

1+5 or 1-5

so x=6 or x=-4

Likurg_2 [28]3 years ago

3 0

Answer:

it a

Step-by-step explanation:

because this ^ means its a because it is factoring out

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