Solve (a×b×c)^(-2): Negative Exponent with Multiple Variables

Question

Solve the following equation:(a×b×c)2= \left(a\times b\times c\right)^{-2}=

Video Solution

Solution Steps

00:00 Simplify the following problem
00:03 According to the laws of exponents, a number with a negative exponent (-N)
00:06 equals the reciprocal number raised to the same power multiplied by (-1)
00:09 We will apply this formula to our exercise
00:12 Convert to the reciprocal number
00:18 Raise it to the same power (N) multiplied by (-1)
00:22 This is the solution

Step-by-Step Solution

To solve the equation (a×b×c)2(a \times b \times c)^{-2}, we'll make use of the exponent rules. The rule for a negative exponent states that xn=1xnx^{-n} = \frac{1}{x^n}. Therefore, applying this rule directly to our expression, we obtain:

(a×b×c)2=1(a×b×c)2(a \times b \times c)^{-2} = \frac{1}{(a \times b \times c)^2}.

Let's break this down step-by-step:

  • Step 1: Recognize the need to convert the negative exponent. According to the exponent rule, any expression with a negative exponent can be rewritten as a reciprocal with a positive exponent.

  • Step 2: Apply the rule: (a×b×c)2(a \times b \times c)^{-2} becomes 1(a×b×c)2\frac{1}{(a \times b \times c)^2}.

By applying the rules correctly, we have simplified the expression to:

1(a×b×c)2\frac{1}{(a \times b \times c)^2}.

Answer

1(a×b×c)2 \frac{1}{\left(a\times b\times c\right)^2}