Question

Simplifique os radicais e efetue as operações:
a)√75 - 2√12 + √27 =
b)√12 - 9√3 + √75 =
c)√98 - √18 - 5√32 =
d)5√180 + √245 - 17√5 =

Answer 1

√75=√25x3=5√3
√12=√3x4=2√3
√27=√3x9=3√3
√98=√2x49=7√2
√18=√2x9=3√2
√32=√2x16=4√2
√180=√5x36=6√5
√245=√5x49=7√5

a)5√3-4√3+3√3=4√3
b)2√3-9√3+5√3=-2√3
c)7√2-3√2-20√2=-16√2
d)30√5+7√5-17√5=20√5