Question 118118
Simplify by combining like terms. 
square root of 98 + 3 square root of 50 - 3 square root of 8 
sqrt(49*2) + 3sqrt(25*2) - 3sqrt(4*2)
=7sqrt2 + 15sqrt2-6sqrt2
= 16sqrt2
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8 square root of 5 - 11 square root of 5 + 3 square root of 5
= 0
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Cheers,
Stan H.