(√3+√5) (3√2-√5) beserta caranya​

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(√3+√5) (3√2-√5) beserta caranya​

( sqrt{3} + sqrt{5} )(3 sqrt{2} - sqrt{5} ) \ = sqrt{3} times 3 sqrt{2} + sqrt{5} times 3 sqrt{2} - sqrt{3} times sqrt{5} - (sqrt{5} ) ^{2} \ = 3 sqrt{6} + 3 sqrt{10} - sqrt{15} - 5 \ = 3( sqrt{6} + sqrt{10} ) - sqrt{15} - 5

pembahasan terlampir.

konsep yang digunakan:

(x + y)(z - y) = xz + yz - xy - y ^{2}