No clue, any help?

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What expresion raised to the fourth power is 81x^12y^8z^16?

2006-09-29 02:01:06 · 3 answers · asked by Mike l 1 in Education & Reference ➔ Homework Help

3 answers

Step 1: Find the 4th root of 81.
81 is a square of 9, which is a square of 3, so 3 is the 4th root of 81.

Step 2: Divide the exponents by 4 for x, y, and z.
x^12 = x^(3*4)
y^8 = y^(2*4)
z^16 = z^(4*4)

Step 3: Rewrite your equation.
3x^3y^2z^4 (solution!)

2006-09-29 02:05:52 · answer #1 · answered by ³√carthagebrujah 6 · 0⤊ 0⤋

81x^12y^8z^16=3^4x^12y^8z^16
now divide the individual powers
by 4 to get youranswer
=3x^3y^2z^4

2006-09-29 09:04:54 · answer #2 · answered by raj 7 · 0⤊ 0⤋

can u express tht more clearly???

2006-09-29 09:09:16 · answer #3 · answered by mitzy 5 · 0⤊ 0⤋