3 years ago

What is the following product? (xsqrt7 - 3sqrt8)(xsqrt7 -3sqrt8)

Mathematics

1 answer:

Brilliant_brown [7]3 years ago

6 0

Answer:

See the answer below

Step-by-step explanation:

x²s²q²r²t²49 - 6xs²q²r²t²112 + 9s²q²r²s²64

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To the nearest mile, what is the total distance that he ran?

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Step-by-step explanation:

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3 years ago

How many pints are in 1 and 1/2 quarts

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3 years ago

Refer to the rectangle below. The length of the rectangle is x + 12. The width of the rectangle is x + 3.

Elis [28]

Answer:

$x^2+15x+36$

Step-by-step explanation:

The complete question is shown in the attachment.

The length of the rectangle is x + 12. The width of the rectangle is x + 3.

Recall that area of a rectangle is $Length \times Width$

In terms of x, the area is $(x+12)(x+3)$

Recall the distributive property of real numbers: $(a+b)(c+d)=a(c+d)+b(c+d)$

We apply this property to get:

$(x+12)(x+3)=x(x+3)+12(x+3)$

We expand again to get:

$(x+12)(x+3)=x^2+3x+12x+36$

We now simplify to obtain:

$(x+12)(x+3)=x^2+15x+36$

The area of the rectangle is $x^2+15x+36$

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3 years ago

The perimeter of a rectangular painting is 244 centimeters. If the width of the painting is 51 centimeters, what is the length?

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Step-by-step explanation:

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