Mathematics, 26.06.2019 07:30 lizzyhearts
He variables a, b, and c represent polynomials where a = x2, b = 3x + 2, and c = x – 3. what is ab – c2 in simplest form?
Answers: 1
![A=x^2\\B=3x+2\\C=x-3\\\\AB-C^2\\\text{Substitute:}\\\\(x^2)(3x+2)-(x-3)^2\\\\\text{Use distributive property}\ a(b+c)=ab+ac\\\text{and}\ (a-b)^2=a^2-2ab+b^2:\\\\(x^2)(3x)+(x^2)(2)-[x^2-(2)(x)(3)+3^2]\\\\=3x^3+2x^2-x^2+6x-9\\\\=\boxed{3x^3+x^2+6x-9}](/tpl/images/0018/6841/8ce72.png)
Another question on Mathematics
Mathematics, 21.06.2019 22:30
Aflagpole broke in a storm. it was originally 8 1 81 feet tall. 2 8 28 feet are still sticking straight out of the ground, where it snapped, but the remaining piece has hinged over and touches the ground some distance away. how far away is the end of the pole from the base of the pole along the ground?
Answers: 1
Mathematics, 21.06.2019 22:30
Tommy buys a sweater that is on sale for 40% off the original price. the expression p -0.4p can be used to find the sale price of the sweater, where p is the original price of the sweater. if the original price of the sweater is 50, what is the sale price?
Answers: 1
Mathematics, 21.06.2019 22:30
(a.s."similarity in right triangles"solve for xa.) 10b.) 20c.) 14.5d.) [tex] 6\sqrt{3} [/tex]
Answers: 1
Mathematics, 21.06.2019 23:00
The ratio of the perimeters of two similar triangles is 4: 3. what are the areas of these triangles if the sum of their areas is 130cm2?
Answers: 3
You know the right answer?
He variables a, b, and c represent polynomials where a = x2, b = 3x + 2, and c = x – 3. what is ab –...
Questions
Mathematics, 07.01.2021 17:10
Mathematics, 07.01.2021 17:10
Computers and Technology, 07.01.2021 17:10
English, 07.01.2021 17:10
Mathematics, 07.01.2021 17:10
Chemistry, 07.01.2021 17:10
Mathematics, 07.01.2021 17:10
English, 07.01.2021 17:10
Mathematics, 07.01.2021 17:10
Mathematics, 07.01.2021 17:10
Mathematics, 07.01.2021 17:10
