Question

Simplify the following surd expressions

a)

`7 √(3) - 2 √(3) + √(3) - 3 √(3)`

b)

`5 √(7) + 4 √(7) - 8 √(7)`
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Answer 1

• a) 3√3
• b) √7

Explanation:

a)

• 7√3 -2√3 + √3 - 3√3 =
• √3(7 - 2 + 1 - 3) =
• √3*3 =
• 3√3

b)

• 5√7 + 4√7 - 8√7 =
• √7(5 + 4 - 8) =
• √7*1 =
• √7