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Step-5

Title: Simplify

Grade: 7-b Lesson: S5-L4

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

Lesson Steps

Steps	Problem	Solution
1	Simplify	\$ (-6xy^7)(4x^4y^2) \$
2	After multiplication	\$(-6xy^7) \times (4x^4y^2) = -24(x.x^4)(y^7.y^2)\$
3	Using identity \$a^m \times a^n = a^(m+n)\$	\$-24x^(1+4)y^(7+2) = -24 x^5y^9\$
4	Answer	D : \$-24 x^5y^9\$

Steps

Problem

Solution

Simplify

\$ (-6xy^7)(4x^4y^2) \$

After multiplication

\$(-6xy^7) \times (4x^4y^2) = -24(x.x^4)(y^7.y^2)\$

Using identity \$a^m \times a^n = a^(m+n)\$

\$-24x^(1+4)y^(7+2) = -24 x^5y^9\$

Answer

D : \$-24 x^5y^9\$