Question

What is the simplified form of 3 √7 - 5√7

Answer 1

Heya Mate!!

Solution:-

3√7 - 5√7

= (3 - 5)√7

= -2√7

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Answer 2

Concept-

Use the concept of adding or subtracting the radicals. 3√7 - 5√7 both are like terms because the radical parts are the same . Since, both these terms have same radical parts, they are like terms and so their coefficients can be combined , so simply subtract the coefficients of like terms.

Given-

Radical expression is given as 3 √7 - 5√7

Find-

Find the simplified form of the radical expression 3 √7 - 5√7

Solution-

Simplified form of the radical expression 3 √7 - 5√7  is-

⇒ 3√7 - 5√7

⇒ √7 (3 - 5)

⇒ -2√7

Therefore, Simplified form of Radical expression 3 √7 - 5√7  is -2√7.

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