1.

Prove that `sqrt(98) + sqrt8 - 2 sqrt(32) = sqrt2`

Answer» `sqrt(98) + sqrt8 -2 sqrt(32) = sqrt(49 xx 2) + sqrt(4 xx 2) -2 sqrt(16 xx 2)`
`=7 sqrt2 + 2 sqrt2-2 xx 4 sqrt2 = 9 sqrt2 - 8sqrt2 = sqrt2`
Hence `sqrt98 + sqrt8 -2 sqrt(32) = sqrt2`


Discussion

No Comment Found