Răspunsuri

2014-06-15T17:07:45+03:00
A) -15a⁶b³-2a⁶b³=-17a⁶b³

b)
2,5xy² * 2x²-5x³y²=5x³y²-5x³y²=0

c)

6x²y²z+30x²y²z-18x²y²z=18x²y²z

h) √12a²b-4√3a²b+2ab*3√3a=
√12a²b-4√3a²b+6√3a²b=
√12a²b+2√3a²b=
2√3a²b+
2√3a²b= 4√3a²b