I have no clue how to solve these, could someone help me?
For questions 6-8, multiple the following polynomials.
7. 4a(a^2+7a+4)
A. 4a+28a^2+16a
B. 4a^3+28a^2+16a
C. 4a^3+44a
D. 44a^4
8. (2y-3)(3y-2)
A. 6y^2-13y+6
B. 6y^2-13y-6
C. 6y^2+13y-6
D. 6y^2+13y+6
1.B
2.D
Ur Welcome
well, Google distributive property
4a(a^2) = 4 a^3
4a(7a) = 28 a^2
4a(4) = 16 a
Now add :)
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distributive property again
2y(3y-2) = 6 y^2 - 4 y
-3(3y-2) = -9y + 6
now add
6 y^2 - 13 y + 6
works every time
Please check, not D for 8 (or 2)
@ weekend, one of your answers is wrong.
Just giving somebody the answer does not help anybody, and will get you banned.
@ Ruby, we "solve" equations, you have no equations.
What you meant is to 'simplify'
Show some steps to show me what you did , so I can see where you went wrong.
Giggity Giggity! I got the answers for you.
1.B
2.D
3.C
4.C
5. =
6.C.
7.B
8.A
100% A+ Your welcome
To multiply two polynomials, use the distributive property and combine like terms. Here's how to solve each problem:
7. Multiply 4a by each term inside the parentheses: 4a * a^2 = 4a^3, 4a * 7a = 28a^2, 4a * 4 = 16a. Combine the results: 4a(a^2+7a+4) = 4a^3 + 28a^2 + 16a. So the correct answer is B. 4a^3+28a^2+16a.
8. Multiply each term of the first polynomial (2y - 3) by each term of the second polynomial (3y - 2):
2y * 3y = 6y^2,
2y * -2 = -4y,
-3 * 3y = -9y,
-3 * -2 = 6.
Combine the results: (2y-3)(3y-2) = 6y^2 - 4y - 9y + 6 = 6y^2 - 13y + 6. So the correct answer is A. 6y^2-13y+6.