√8+√50+√72+√98
Let us simplify the expression,
=√(2×4)+√(2×25)+√(2×36)+√(2×49)
=√2√4+√2√25+√2√36+√2√49
=2√2+5√2+6√2+7√2
=20√2
=20×1.414
=28.28
If ⎡⎣{(172)−2}−13⎤⎦14=7m then find the value of m.