Question

*1* 4x(a+b)=



*2* 2x(x²-2x+5)=


*3* (X+5).(X+2)=

Answer 1

*1* 4x(a+b)

.....4xa + 4xb


*2* 2x(x^2 - 2x + 5)

......2x^4 - 4x^3 + 10x


*3* (X +5) (X + 2)

.....X^2 + 2X + 5X + 10

.....X ^2 + 7X + 10