Ask your own question, for FREE!
Mathematics 18 Online
OpenStudy (anonymous):

Simplify: 2x (x + 9)

Nnesha (nnesha):

same like last one :) distribute

pooja195 (pooja195):

2x times X =?

OpenStudy (anonymous):

2x

pooja195 (pooja195):

2x times 9 = ?

OpenStudy (anonymous):

or is it 2x^2

OpenStudy (anonymous):

18x

Nnesha (nnesha):

when you multiply variables you should add their exponent \[\huge\rm x^n \times x^m = x^{n+m}\]

OpenStudy (anonymous):

There is no exponets

OpenStudy (anonymous):

is the answer 2x-18

OpenStudy (anonymous):

@pooja195

Nnesha (nnesha):

x <---there is a exponent

Nnesha (nnesha):

which is 1 so x times x = ?

OpenStudy (anonymous):

x^2?

Nnesha (nnesha):

yep that's right

Nnesha (nnesha):

so 2x times x = suppose to be what ?

OpenStudy (anonymous):

2x^2

Nnesha (nnesha):

perfect!

OpenStudy (anonymous):

THats my answer?

Nnesha (nnesha):

|dw:1426540544633:dw| multiply everything which is in parentheses by outside number or variable (distribute ) so final answer suppose to be ?

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!