find a and b if, (4+3√5/4-3√5)+(4-3√5/4+3√5) = a+b√5
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Answered by
5
Step-by-step explanation:
just solve this and simplify u get urs answer perfectly
Answered by
6
Answer:
(4+3√5)×(4-3√5)=a+b√5
using identity: (a+b)(a-b)= a^2-b^2
a=4
b=3√5
= (4)^2 - (3√5)^2=a+b√5
= 16 - (9×5)=a+b√5
= 16 - 45= a+b√5
=so.. a=16
b=-45√5
Step-by-step explanation: BRAINLIEST PLS
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