So youve done good so far.
So picking up from : (x^2-x-12)-2(x-4)
-First distribute the (-2) to each factor.
(x^2 - x - 12) -2x + 8
-Then just add variables with the same exponent
x^2 - 3x - 4
Done!

4 0

3 years ago

Simplify <br> (5x^2y^3)^2x(2x^3y^4)^3

Misha Larkins [42]

Remember
$(abc)^x=(a^x)(b^x)(c^x)$
and
$(x^m)(x^n)=x^{m+n}$
and
$(x^m)^n=x^{mn}$
so
I'm going to assume that that x after the 2 exponent is multiply and not a variable to be multiplied, if it is go to option 2
$(5x^2y^3)^2(2x^3y^4)^3$ =
$(5^2)((x^2)^2)((y^3)^2)(2^3)((x^3)^3)((y^4)^3)$ =
$(25)(x^4)(y^6)(8)(x^9)(y^{12})$
$200x^{13}y^{18}$

2. if that x was a variable and nod a multiply then
$200x^{14}y^{18}$

7 0

3 years ago

Sandy plays tennis once every 6 six days. Jim plays once every 8 eight days. If they both played tennis today, in how many days

tiny-mole [99]

Answer: 24 days

Step-by-step explanation:

Sandy plays tennis once every 6 six days while Jim plays tennis once every 8 eight days.

To get the number of days they will play on the same day again, we find the lowest common multiple for the numbers.

The lowest common multiple is the smallest positive integer which is evenly divisible by both 6 and 8.

6 = 6, 12, 24, 30

8 = 8, 16, 24, 32

The lowest common multiple is 24.

In 24 days, they will play on the same day again

8 0

4 years ago