To find the answer, you have to multiply each term of the first parenthesis' expression with each term in the next parenthesis' expression. Then combine like terms. So we have:

$(6x^2-6x-5)(7x^2+6x-5)\\=(6x^2)(7x^2)+(6x^2)(6x)+(6x^2)(-5)+(-6x)(7x^2)+(-6x)(6x)+(-6x)(-5)+(-5)(7x^2)+(-5)(6x)+(-5)(-5)\\=42x^4+36x^3-30x^2-42x^3-36x^2+30x-35x^2-30x+25\\=42x^4-6x^3-101x^2+25$

Answer choice B is right.

6 0

2 years ago

HELP PLS What is the slope of the line: -3 -1/3 1/3 3

nadezda [96]

Answer:

Step-by-step explanation:

All you have to do is take that bottom dot and count how many the rise is ----3 and how many the run is -----1.

Therefore, 3/1 is 3

6 0

3 years ago

Help Please! :) I’m stuck and I don’t understand.

Nonamiya [84]

Answer:

4a. 41, 4b. 26.2, 4c. 42.8, 4d. 27.05 26.2, 27.05, 41, 42.8

Step-by-step explanation:

5 0

3 years ago

Need answer????????????????????

zaharov [31]

Answer: .625 I believe

Step-by-step explanation:

6 0

3 years ago