1.

If \(\frac {√ {50} + √ {98} + √ {72}}{5√ {2} - √ {18}} + \left(√ {75} + √ {108} - √ {147}\right)= a+ b√ 3\), then the value of 4a - 7b will be:

A. 7
B. 6
C. 8
D. 5
Answer» D. 5


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