We need to add like terms, meaning add the x's together and add the regular numbers together.
So if we add the x's together, -8x+9x = 1x.
Then when we add the numbers together, -12+4 = -8.
Combine our two sums and we get x-8 as the final answer.
Simplify 1/3 + 9 to 28/3
28/3 (8-3)
Simplify 8 - 3 to 5
28/3 <span>× 5
Simplify
140/3</span>
Answer:
n^13
Step-by-step explanation:
You add the exponents when multiplying
subtract when dividing
I believe the ordered pair would be (-1,0). Hope this helps!
Answer:
Step-by-step explanation:
(x-5)(x^2-2x-6)
x(x^2-2x-6)-5(x^2-2x-6)
x^3-2x^2-6x-5x^2+10x+30
Collect like terms
x^3-7x^2+4x+30
The second option is correct
2. (4a+5)^2=16a^2+Ba+25
Simplifying
(4a+5)^2=16a^2+Ba+25
(4a+5)(4a+5)=16a^2+Ba+25
4a(4a+5)+5(4a+5)=16a^2+Ba+25
16a^2+20a+20a+25=16a^2+Ba+25
16a^2+40a+25=16a^2+Ba+25
Comparing coefficient if a
Then 40a=Ba
Then B=40.
3. -5x^4(-3x^2+4x-2)
Simplifying and putting in mind that
-×-=+
-×+=-
Then, a^m×a^n=a^(a+b). Indices
15x^(4+2)-20x^(4+1)+10x^4
15x^6-20x^5+10x^4
The first option is the correct option.
4. 6xy^3z.3x^2yx^2
Using indices
a^m×a^n=a^(a+b)
(6×3)x^(1+2+2)y^(3+1)z
(18)x^(5)y^(4)z
18x^5y^4z
The second option is the correct option
