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Mathematics 15 Online
OpenStudy (anonymous):

Use the distributive property to simplify the following expressions.

OpenStudy (anonymous):

\[A. 4(x+2) \] \[b. -5(9+X) \]

OpenStudy (anonymous):

\[C. 7(x-3)\]

OpenStudy (anonymous):

there =3

Vocaloid (vocaloid):

well, the general rule for the distributive property is A(B+C) = A*B + A*C

Vocaloid (vocaloid):

so, we start off with A) 4(x+2) = 4*x + 4*2 = 4x + 8

OpenStudy (anonymous):

ok

Vocaloid (vocaloid):

do you want to try B and C on your own now? c;

OpenStudy (anonymous):

Yeah ^-^

Vocaloid (vocaloid):

give it a go, I'll guide you if you get stuck

OpenStudy (anonymous):

um so with c. it is going to be...7(x-3)=7*x+7*3=7x +21?...

Vocaloid (vocaloid):

hm, not quite, remember the negative sign on 3

Vocaloid (vocaloid):

7*x + 7*(-3) = ?

OpenStudy (anonymous):

Oh. -21?

Vocaloid (vocaloid):

right, 7x-21

OpenStudy (anonymous):

thanks ^-^ so um b is -45?

Vocaloid (vocaloid):

almost, don't forget the x part

Vocaloid (vocaloid):

-5(9+x) = (-5)(9) - 5x

OpenStudy (anonymous):

Okay thank you for helping me :)

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