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Jobisdone [24]
3 years ago
8

3x^2(x^3-1)+2x^3(2x^2+2) Whats the simplified answer?

Mathematics
1 answer:
ahrayia [7]3 years ago
4 0

Answer:

\large\boxed{7x^5+4x^3-3x^2}

Step-by-step explanation:

3x^2(x^3-1)+2x^3(2x^2+2)\qquad\text{use the distributive property:}\ a(b+c)=ab+ac\\\\=(3x^2)(x^3)+(3x^2)(-1)+(2x^3)(2x^2)+(2x^3)(2)\qquad\text{use}\ a^na^m=a^{n+m}\\\\=3x^{2+3}-3x^2+4x^{3+2}+4x^3\\\\=3x^5-3x^2+4x^5+4x^3\qquad\text{combine like terms}\\\\=(3x^5+4x^5)-3x^2+4x^3\\\\=7x^5+4x^3-3x^2

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Evaluate \dfrac{e}{4}+2f-3
Igoryamba

Answer:

The value of given expression is 1.

Step-by-step explanation:

Consider the given expression is

\dfrac{e}{4}+2f-3

When e=12 and f=\dfrac{1}{2}.

Substitute e=12 and f=\dfrac{1}{2}  in the given expression.

\dfrac{12}{4}+2(\dfrac{1}{2})-3

On simplification we get

3+1-3

1

Therefore, the value of given expression is 1.

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Step-by-step explanation:

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