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3 years ago

Is 3(b+c) equivalent expressions?A. True B. False

Mathematics

2 answers:

andre [41]3 years ago

8 0

Answer:

Is 3(b+c) equivalent expressions?

A. True

eimsori [14]3 years ago

5 0

Answer is: A
Hope this helps :)
Brainliest plzz

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Expand and simplify (X+7)(x-9)

Lorico [155]

Answer:

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Step-by-step explanation:

expand out the brackets to get:

X²+9x+7x-63

simplify:

X²+16x-63

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a rectangle has a height of n3+4n2+3n and a width of n^3+5n^2 express the area of the entire rectangle

alukav5142 [94]

Given:

It is given that the height of the rectangle is $n^3+4n^2+3n$

The width of the rectangle is $n^3+5n^2$

We need to determine the area of the entire rectangle.

Area of the rectangle:

The area of the rectangle can be determined using the formula,

$A=height \times width$

Substituting the values, we have;

$A=(n^3+4n^2+3n)(n^3+5n^2)$

Multiplying each term within the parenthesis, we get;

$A=n^{3} n^{3}+n^{3} \cdot 5 n^{2}+4 n^{2} n^{3}+4 n^{2} \cdot 5 n^{2}+3 n n^{3}+3 n \cdot 5 n^{2}$

Simplifying, we get;

$A=n^{6}+5 n^{5}+4n^{5}+20 n^{4}+3 n^{4}+15 n^{3}$

Adding the like terms, we have;

$A=n^{6}+9n^{5}+23 n^{4}+15 n^{3}$

Thus, the area of the entire rectangle is $n^{6}+9 n^{5}+23 n^{4}+15 n^{3}$

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4 years ago

the sides of a square are all increased by 3cm The area of the new square is 64cm^2. Find the length of the original square

djyliett [7]

The "new" square must have sides of size 8

8 * 8 = 64

so the original square must have had sides of size 5cm. 8 - 3

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4 years ago