Question

Simplify this expression. 4x(7x2)

Answer 1

is that
4x(7x²)?

Answer 2

Yes

Answer 3

Okay...so when multiplying things like this...it's important to remember...you ADD the exponents...and MULTIPLY the coefficients

so

4x^1 times 7x^2

MULTIPLY the coefficients = 4 times 7
ADD the exponents = 2 + 1

Don't forget the x!

put all together....your answer is?

Answer 4

28x3?

Answer 5

correct :)

Answer 6

Yay :D thank you

Answer 7

haha no problem! :)

Answer 8

7x(9x2) I cant figure this one out either? I just tried that same method but came up with 14x9

Answer 9

not quite...I think you're mixing up your numbers

7x(9x²)

multiply the coefficients .....7 times 9
add the exponents 1 + 2

don't forget the x!

what do you get?

Answer 10

63x3?

Answer 11

there ya go :)

Answer 12

7x(6x) so if I was simplifying this I would get 42x?

Answer 13

sorry about that....and no not quite.....you forgot to add the exponents....you have 1 + 1....so your answer would be 42x²

Answer 14

Oh ok, thank you :)

Answer 15

mmhmm :) anytime :)