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lesya [120]
3 years ago
6

Compute each quotient. (a) x^2-625 ÷ x-25 (b) x^3+1 ÷ x+1 (c) x^3- ⅛ ÷ x- ½ (d) x^2- 0.01 ÷ x- 0.1

Mathematics
1 answer:
klio [65]3 years ago
5 0

Answer:

(a) x+25

(b)  x^2-x+1

(c) (x^2+\frac{x}{2}+\frac{1}{4})

(d)  x-0.1

Step-by-step explanation:

We have to compute

(a) \frac{x^2-625}{x-25}

We know the algebraic equation a^2-b^2=(a+b)(a-b)

So \frac{x^2-625}{x-25}=\frac{x^2-25^2}{x-25}=[tex]x+25

(b) We have to compute \frac{x^3+1}{x+1}

We know the algebraic equation a^3+b^3=(a+b)(a^2-ab+b^2)

So \frac{x^3+1}{x+1}=\frac{(x+1)(x^2-x+1)}{x+1}=x^2-x+1

(c) We have to compute \frac{x^3-\frac{1}{8}}{x-\frac{1}{2}}

We know the algebraic equation  a^3-b^3=(a-b)(a^2+ab+b^2)

\frac{x^3-\frac{1}{8}}{x-\frac{1}{2}}=\frac{(x-\frac{1}{2})(x^2+\frac{x}{2}+\frac{1}{4})}{x-\frac{1}{2}}

(x^2+\frac{x}{2}+\frac{1}{4})

(d) We have to compute \frac{x^2-0.01}{x+0.1}

We know the algebraic equation a^2-b^2=(a+b)(a-b)

\frac{x^2-0.01}{x+0.1}=\frac{(x+0.1)(x-0.1)}{x+0.1}=x-0.1

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