Step-3

Title: Simplify the expression

Grade: 8-a Lesson: S1-L7

Explanation: Hello Students, time to practice and review the steps for the problem.

Lesson Steps

Step Type Explanation Answer

1

Problem

Simplify the expression
\$(2/a-5/b^2-8/c^2) + (3/a+3/b^2+5/c^2) \$

2

Step

After eleminating the brackets we get

\$ 2/a - 5/b^2 - 8/c^2 + 3/a + 3/b^2 + 5/c^2 \$

3

Step

Adding like terms together

\$ (2/a + 3/a) + (- 5/b^2 + 3/b^2) + (- 8/c^2 + 5/c^2 ) \$

4

Step

Taking LCM as \$a,b^2,c^2\$

\$ (2 + 3)/a + (- 5 + 3)/b^2 + (-8 + 5)/c^2 \$

5

Step

After adding we get

\$ 5/a - 2/b^2 - 3/c^2 \$

6

Answer

C


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