Chin made an error in his chart showing the multiplication of the binomial by the trinomial (3x+y)(x^2+2y+4) which change can be made to correct the chart?

(a.) the expression 3x^3 should be 3x^2
(b.) the expression 6x should be 6xy
(c.) the expression x^2y should be x^2y^2
(d.) the expression 4y should be 4y^2

Letter b

Step-by-step explanation:

2y×3x=6xy

It is not equal to 6x

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!

2 1/2 feet

step-by-step explanation: