Question

Cine știe cum se rezolva?
Ex. 14

Answer 1

Răspuns:

a) 7ab²+14a²b=7ab(b+2a)

b) -3,6x²y³+0,8x⁴y⁵=4x²y³(0,9+0,2x²y²)

c) 2√17xy⁴-√17x²y=√17xy(2y³-x)

d) -15tz-√5t²z=-√5tz(3√5-t)

e) x(3-y)+5(y-3)=x(3-y)-5(3-y)=(3-y)(x-5)

f) 2,5a(a-1)-(1-a)=2,5a(a-1)+(a-1)=(a-1)(2,5a+1)

Explicație pas cu pas: