Chapter 5: Q.246. (page 537)

Find the product of the below expression.
$(7 a + b) (a - 7 b)$

Short Answer

Expert verified

The solution is $7 a^{2} - 48 a b - 7 b^{2}$ .

Step by step solution

Step 1. Given information.

The given expression is $(7 a + b) (a - 7 b)$ .

Step 2. Simplify the expressions by using the distributive property ab±c=ab±ac.

Solve it as follows:

$(7 a + b) (a - 7 b) = 7 a (a - 7 b) + b (a - 7 b) \Rightarrow 7 a^{2} - 49 a b + a b - 7 b^{2} \Rightarrow 7 a^{2} - 48 a b - 7 b^{2}$

Step 3. Simplified expression.

Hence, the required expression is $7 a^{2} - 48 a b - 7 b^{2}$ .

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Find the product of the below expression.
$(7 a + b) (a - 7 b)$

Short Answer

Step by step solution

Step 1. Given information.

Step 2. Simplify the expressions by using the distributive property ab±c=ab±ac.

Step 3. Simplified expression.

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Find the product of the below expression.7a+ba-7b

Short Answer

Step by step solution

Step 1. Given information.

Step 2. Simplify the expressions by using the distributive property ab±c=ab±ac.

Step 3. Simplified expression.

One App. One Place for Learning.

Most popular questions from this chapter

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Study anywhere. Anytime. Across all devices.

Find the product of the below expression.
$(7 a + b) (a - 7 b)$