What are the solutions to the quadratic function. f(x) = x^2+4x-12

Mathematics

2 answers:

goldfiish [28.3K]3 years ago

7 0

Answer:

(x - 2) (x + 6)

Explanation:

A p 3 x

Rudiy273 years ago

5 0

Answer:

2, -6

Step-by-step explanation:

x^2 + 4x - 12

A = 1

B = 4

C = -12

i used the "X" method to solve for the solutions. i think it's easier than using the quadratic formula but it doesn't always work

for the "X" method you have to multiply your A value and your C value together so 1 x (-12) = -12. that is going to be the top part of the X

the bottom part of the x will be your B value which is 4

we have to find multiples of -12 that will also add to 4

so -2 and 6 multiply to -12 but also add to 4 so we know these numbers will work

i added added two drawings to show how i found the solutions using the "X" method and the quadratic formula

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djverab [1.8K]

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8 0

3 years ago

Use foil method (8a - 8)(4a + 1)

BlackZzzverrR [31]

The answer is: " 32a² − 24a − 8 " .
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Given:
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(8a − 8)(4a + 1) ; Let us expand this expression using the: "FOIL" method.
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"FOIL" stands for "First terms, Outer terms, Inner Terms, Last Terms" ;
 in that order.
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Basically:
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(a + b)(c + d) = ac + ad + bc + bd ;

in which the:

First term is: "ac" ;
Outer term is: "ad" ;
I nner term is: "bc" ;
Last term is: "bd " .
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So; we have (given):

(8a − 8)(4a + 1) ;
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Let's take the "First, Outer, Inner, and Last terms" ; as follows:
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F: (8a)*(4a) = 32a² ;
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O: (8a)*(1) = 8a ;
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I : (-8)*(4a) = -32a ;
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L: (-8)*(1) = -8
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Now, let us write out these terms:
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32a² + 8a − 32a - 8 ;
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Now, combine the "like terms" in this expression; to simplify:

 + 8a − 32a = -24a ;
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and rewrite the simplified expression ; which is:
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 32a² − 24a − 8 .
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6 0

3 years ago

1-sinA+cosA / sinA+cosA-1 = 1+cosA/sinA

Art [367]

Solution:

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