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Rezolvati:
a=4√5×(√5+3√20)-√2×(8-3√18)+8√2-148
a=?


Răspuns :

sper ca te.am ajutat.Succes!
Vezi imaginea DHGJFT
a=4√5×(√5+3√20)-√2×(8-3√18)+8√2-148
a=4√5×√5+4√5x3√20-√2×8+√2x3√18+8√2-148
a=4x5+4√5x6√5-√2×8+√2x9√2+8√2-148
a=20+120-8√2+18+8√2-148
a=140+18-148
a=158-148
a=10