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Step-4

Title: Factorize

Grade: 9-a Lesson: S2-L2

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

Lesson Steps

Step	Type	Explanation	Answer
1	Problem	Simplify the expression: \$25x^2 + 16y^2 + 40xy \$
2	Step	This is in the form of	\$(a + b)^2 = a^2 + b^2 + 2ab \$
3	Step	by substituting	\$ (5x)^2 + (4y)^2 + 2 (5x)(4y)\$
4	Formula:	By using formula	\$((a + b)^2) \$
5	Step	by simplifying	\$ (5x + 4y)^2 \$
6		Answer	B

Step

Type

Explanation

Answer

Problem

Simplify the expression:
\$25x^2 + 16y^2 + 40xy \$

Step

This is in the form of

\$(a + b)^2 = a^2 + b^2 + 2ab \$

Step

by substituting

\$ (5x)^2 + (4y)^2 + 2 (5x)(4y)\$

Formula:

By using formula

\$((a + b)^2) \$

Step

by simplifying

\$ (5x + 4y)^2 \$

Answer