√5-2/√5+2 - √5+2/√5-2 = a+b√5 Find a and b.
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Answer:
a = 0 and b = -8
Step-by-step explanation:
cross multiply the left hand side to have a common denominator...
in denominator u will have
(x+y)(x-y) = x^2 - y^2 formula
where x is √5 and y is 2
so denominator will be 1....
in the numerator it will be in the form of
(x-y)^2 - (x+y)^2 = -4xy
where x is √5 and y is 2
therefore ans is -4(√5)(2)
and comparing things u will get
a = 0 and b = -8
got it bro. ?
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