Answer: 6x^3 - 3x^2 + 12x
Step-by-step explanation: The Figure Given above is a rectangle. So Lets understand how to find the area.
- Area of a Rectangle is L*B -
They have given L and B so lets calculate it.. So our formula for finding the area is L*B or L x B.
So 3x x 2x^2-x+4 = 6x^3 - 3x^2 + 12x
NOTE: ( ^ symbols represents Exponential Power. Eg - 6^3 is 6 cube.... or 6 x 6 x 6)