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galina1969 [7]
3 years ago
13

(Picture) MULTIPLYING MONOMIALS AND BINOMIALS

Mathematics
1 answer:
Sauron [17]3 years ago
3 0

Answer:

Option C is correct, i.e. 2x² +7x -4.

Step-by-step explanation:

Given is (2x-1)(x+4)

Applying FOIL method:-

F- multiply First two, O- multiply Outer two, I- multiply Inner two, L- multiply Last two.

So, (2x-1)(x+4) = 2x*x +2x*4 -1*x -1*4

(2x-1)(x+4) = 2x² +8x -1x -4

(2x-1)(x+4) = 2x² +7x -4

Hence, option C is correct, i.e. (2x-1)(x+4) = 2x² +7x -4.

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Alekssandra [29.7K]

put the equation 2x - y = 16 in the form of y = mx + c

2x - y = 16

2x = 16 + y

y = 2x - 16

the slope of this line is 2. the slope of a line perpendicular to it would be the negative reciprocal of 2. in other words, it would multiply with 2 to give -1.

you can form this equation with that info

2x = -1

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OR

you can flip and change the sign (numerator) of 2/1

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6 0
3 years ago
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mars1129 [50]

Answer:

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Step-by-step explanation:

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Which is the solution for the Negative Case

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Rearrange and Add up

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have a great day!

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