× ( 3× + 5 ) = . . .

x(3x + 5)
Gunakan sifat distributif
a(b + c) = ab + ac

= (x)(3x) + (x)(5)
= 3x^2 + 5x

Note : ^ = pangkat

Semoga berfaedah

× ( 3× + 5) = 3ײ + 5×