Question

14. Ştiind că: be a) x.(y+z)= 27, calculați 2xy + 2xz; b) x.(y- z+t) = 53, calculați 3xy - 3xz + 3xt .



dau coroanaaaaa​

Answer 1

Răspuns:

a) x*(y+z) =27

2xy+2xz=2x(y+z)=2*27=54

b) x*(y-z+t) =53

3xy-3xz+3xt=3x(y-z+t)=3*53=159