Multiply the following using the vertical multiplication method:

3x^2+5x+1
* x^2-2x+4


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

b. 3x^4+5x^3+10x^2+18x+4

c. 3x^4-x^3+3x^2+18x+4

d. 3x^4+x^3+x^2+x+4

ANSWER

C.

EXPLANATION

We want to multiply;

We use the distributive property to obtain:

We expand to get:

Regroup similar terms:

Combine similar terms:

The correct choice is C.

neither i nor ii 56 / 4.9 = 11.91489362 and 82 / (11+5) =5.125 so i is wrong

ii. (24/8+2) times 3 = 15 and (42+9)/2 =25.5

step-by-step explanation:

56

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