Question

Упростите выражение:
6b2(5b+4)+8b2(2b−5)

Answer 1

6b²(5b+4)+8b²(2b−5) = 2b²(15b+12+8b-20) = 2b²(23b-8)

Answer 2

6b*2(5b+4)+8b*2(2b-5)=12b*(5b+4)+16b*(2b-5)=4b*(3(5b+4)+4(2b-5))=4b*(15b+12+8b-20)=4b*(23b-8)