Question

Without using table or calculator simplify √50-3√2(2√2-5)-5√3-2

Answer 1

-12

step by step:

√50-3√2(2√2-5) -5√32​

= 5√2 -12+15√2-5(4)√2

= 5√2 -12+15√2-20√2

= -12