Write a simplified polynomial expression in standard form to represent the area of the rectangle below x+5 and 2x-4

Mathematics

2 answers:

Firdavs [7]3 years ago

7 0

It would be 2x^2 + 6x-20

ValentinkaMS [17]3 years ago

4 0

Answer:

$2x^2+6x-20$

Step-by-step explanation:

The sides of the rectangle are x+5 and 2x-4

To find the polynomial that represents the area of the rectangle , multiply the sides of the rectangle

$(x+5)(2x-4)$

Apply FOIL method to multiply it

$(x+5)(2x-4)$

$2x^2-4x+10x-20$

Combine like terms

$2x^2+6x-20$

Area of the rectangle is $2x^2+6x-20$

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dem82 [27]

ANSWER

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EXPLANATION

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We take the inverse sign of both sides to obtain,

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We use our scientific calculator to evaluate and obtain,

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8 0

3 years ago

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