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Step-5

Title: Determine the value of an expression by substituting the values

Grade: 6-b Lesson: S4-L6

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

Lesson Steps

Steps	Problem	Solution
1	Determine the value of an expression by substituting the value p = -2	\$-3/(4p^2) - 6/(5p) \$
2	Now substitute "p" value in the expression	\$ -3/(4(-2)^2) - 6/(5(-2)) \$
3	After simplification we get	\$ -3/(4(4)) + 6/(5(2)) \$
4	After simplification we get	\$ -3/16 + 6/10 \$
5	Taking LCM as 80	\$ (-15 + 48)/80 \$
6	After simplification we get	\$ 33/80 \$
7	Answer	D = \$ 33/80 \$

Steps

Problem

Solution

Determine the value of an expression by substituting the value
p = -2

\$-3/(4p^2) - 6/(5p) \$

Now substitute "p" value in the expression

\$ -3/(4(-2)^2) - 6/(5(-2)) \$

After simplification we get

\$ -3/(4(4)) + 6/(5(2)) \$

After simplification we get

\$ -3/16 + 6/10 \$

Taking LCM as 80

\$ (-15 + 48)/80 \$

After simplification we get

\$ 33/80 \$

Answer

D = \$ 33/80 \$