Question

Describe how to transform the quantity of the third root of x to the fourth power, to the fifth power into an expression with a rational exponent

Answer 1

1. Convert the root into a fractional power. A root of a number is the number to the power of the inverse of that root number. When an exponent is outside a brackets you multiply the exponents.

2.Square root (x+4) -3=1

square root (x+4)=4

(x+4)=(4^2)

x+4=16

x=12

3. f(g(x))=(2x^2+5)^2+2x^2+5+2

f(g(x))=4x^4+20x^2+25+2x^2+7

f(g(x))=4x^4+22x^2+32

4.

A. The descending order of this expression is 7a^3+5a^2b-13ab-4b.

B. This is a polynomial.

C. This is a 3rd degree polynomial.

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