simplify the surd root 63 + root 28 - root 175 + root 162 - root 32
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=√63 + √28 - √175 + √162 - √32
=3√7 + 2√7 - 5√7 + 9√2 - 4√2
=5√7 - 5√7 + 5√2
=5√2
=√50
shreya1775:
But I can't understand this
√63 can be written as √(3×3×7)=3√7
we will use factors for all other terms too, then it can be easily solved
but how come it's 5 root 2
I've edited, hope you'll understand now.
ok thanks
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