Question

Rationalize the denominator

Answer 1

Step-by-step explanation:

7/(5√3 - 4√2) = 7(5√3+4√2) / (5√3-4√2)(5√3+4√2)

= (35√3 + 28√2) / [(5√3)²-(4√2)²

= (35√3 + 28√2) / [(75)-(32)]

= (35√3 + 28√2) / 43