11) Is the Discriminant Positive, Negative or Zero ? 3- 2+ -1- -2-

Q: 8.) Determine the value of b that makes the bx) expression 15 - 20x equivalent to 3(5

A: Given, 15-20x = 3(5+bx)

Q: 8. If (x - 2c)2 - 10(x- 2c) + 21 = 0, what is the value of x?

A: Given (x-2c)2-10(x-2c)+21=0Ans:We know that (a-b)2=a2+b2-2abLet x-2c=uu2-10u+21=0This is in the form…

Q: D: 3x² -12 x2-x-6 2x²-x 4х2-4x+1 8x-4

A:

Q: If z1 = (3,7) and 22 (5,-6), then 2122 is equal to what? %3D А. (57, 17) В. (15, - 42) С. (15, 42)…

A:

Q: -1) nt2 3.

A: To evaluate:    Rewrite the given form in simplified form:

Q: you Sャら-3-2y - | %3D ら -2

A:

Q: Why can't "a-b" equal "b-a"? assuming a and b are nonzero real numbers

A: We have to show that (a-b) ≠b-a  by using a & bare non zero real number

Q: Simply by expressing in the form of a+ib. And 3/√6-√-12.

A: This is complex number. 'i' is the complex number such that i²=-1. The complex conjugate of 'a+ib'…

Q: 9b - 12a + 15b - 3a |

A: To combine the like terms.

Q: 2 1. In the following algebraic expression 3x a) name the coefficient of the first term: b) name the…

A: Solve for the given

Q: 6.) Simplify: -2.5(-2b+ 3) – 6b

A:

Q: x³ +x² +x+7 x² – 1

A:

Q: EXE N)(2x +3=4x+2). %3D O True O False

A: We now check whether the following is true or false. (∃ x ∈ N)(2x+3=4x+2) i.e. there exists x ∈ N…

Q: For what value(s) of x is the expression 2x -x-10 3 6x - 13x 2 -undefined? - 5x

A: Consider the expression. 2x2-x-106x3-13x2-5x

Q: |(p) inches (p + 3) inches (p + 1) inches Which expression describes the volume, in cubic inches, of…

A:

Q: 7. Simplify and evaluate. (2x³y²)³ a) (x’y (9y)? b) for y=-2 (3y*)

A: Given: a)2x-3y23x3y-42b)9y23y-13

Q: 7. Simplify. Write the answer in standard form. 2x(-2х- 3) -4x 3 -4x - 6x O B x² - 3 -4x – 6 | O D

A: We will simplify the given expression.

Q: 18. Simplify: 3 4 + 2 X 1 2 3x X

A: To simplify the following expression.

Q: Simplify (4.x² + 5x +1) – (6x² + x - 8) -2x2 + 4x + 9 10r + 6x +9 2.x2 + 4x – 7 O Pencil

A: Calculation: Simplify the expression as follows:…

Q: Which of the following expressions is equivalent to 2(-3x2 + 6x + 1)– 2(4x2 – 3x + 1)? Explain your…

A:

Q: Assume that 12 + 22 + · · · + n2 = an3 + bn2 +en + d. Find a, b, c, and d.

A:

Q: Prove that if 8x-5=-2x-15 then -x=1

A:

Q: (-5+z) is positive, but (-6+z) is negative. What number could z be?

A:

Q: Gi) △ =D 글62 + 6y /1+ 을

A:

Q: 6.) Simplify: -5z + 13- 2y + 7y -8 + (-5z) + 10

A:

Q: 4 x° y -3,-2 8) Simplify: -3

A: We have to simplify the given expression.

Q: Answer any of the choices: 3+j4 -2+j1 equals: 2+j1 5ej5n A- 0; B- 1; C- -1; D- All the above.

A: The given expression is  3+j42+j1*-2+j15ej5π

Q: 1 L-1 (s²(s + 1).

A: