Question

Simplify (√3-√5)(√5+3)/7-2√5

Answer 1

Step-by-step explanation:

=(√3-√5)(√5+√3)/7-2√5

multiplying the first two :-

=√15-3-5-√15/7-2√5

= -8/7-2√5

rationalisation:-

=-8(7-2√5)/49-20

= -56+16√5/29

.....hope I will right......

Answer 2

(√3² - √5²) / 7-2√5 = 3-5/ 7-2√5 = -2/ 7-2√5= -2/7-√5 * 7+2√5/ 7+2√5= -14-4√5/ (7)²- (2√5)²= -14- 4√5 / 49-20= -14 - 4√5 / 29