Choose the property of addition that justifies the equation. (8 + a) + 6 = 6+ (8+ a) (Choose one) 7+ (* + 9) - (7+x) + 9 (Choose one) %3D 0 +y = y (Choose one)

Q: x2 + 8x + 15

A: Solve for x:                           x2+8x+15=0   Now:                         To determine the…

Q: x2 - 6x - 40

A:

Q: 4. (x2 + 5x -6)(3x-4)

A:

Q: 2x +5x

A: Given 2x +5x

Q: S 2 dx (3×÷1 +12x -15)2 - 15)

A: Consider  ∫23x2+12x−15dx

Q: Simplify 5x(3x2-8x+1)

A: Calculation:The given expression is 5x(3x²-8x+1).Simplify the above expression as follows.

Q: 12x-2(4x+5)

A:

Q: sーッ -x+x =。

A:

Q: Fcator by grouping x3-6x2+5x-30

A: From the given statement, the polynomial expression is,

Q: 3(2x+5)=2x-5

A: It is given that  3(2x+5)=2x-5 We have to solve for x.

Q: x+10 2х+6

A: We have to apply simple logic to solve this problem

Q: -5(2x+3)-(4x+5)

A: Note Because instruction is not given i am simplify this -5(2x+3)-(4x+5)

Q: Perform the indicated operation. Subtract (8x+7) from (4x+9x+4). (8x+7) subtracted from (4x +9x+ 4)…

A: (4x^2+9x+4) - (8x+7)We first have to distribute the negative.

Q: x+12

A: Explanation: Given that,  2x+12here we factorize this expression

Q: 3x x+10

A: We have to find value of x for given isosceles triangle.

Q: 3. (7x -9x3- 4x2 + 5x)- (2x4+3x3-x2-x - 4)

A:

Q: 2x2-x=-2

A: Assuming that the given equation needs to be solved, the solution is given below :

Q: 3x-2(x-4)+x Simplify

A:

Q: 2x + 4 = 2(4x - 16)

A:

Q: 2x +3x

A: We have to add the given terms. You either add or subtract the coefficients and leave the result…

Q: 6x-40=2(x+8)

A:

Q: A rectangle has each side that is multiplied by the value of the width,2x. So basically the…

A: A rectangle has each side that is multiplied by the value of the width,2x. So basically the…

Q: x2+6x-64=6

A: In this question , we can solve for 'x'  values by factoring .

Q: Multiply. (5x - 7)(5x +7) (5x - 7)(5x + 7) = (Simplify your ansv

A:

Q: S 3+4x+3 dx x4-5x2+4 5.

A: Here, x3+4x+3x4-5x2+4=x3+4x+3(x2-1)(x2-4)⇒x3+4x+3x4-5x2+4=x3+4x+3(x-1)(x+1)(x-2)(x+2)

Q: 12x +10 = 54 -10x

A: Here we need to find x from  12x + 10 = 54 - 10x

Q: simplify 8a+20a

A: Simplify the expression.

Q: (2b+5)(b - 1)

A:

Polynomials

Try substituting 1. You will get 6 and not 0. Try other real values also. What About -2? Let us check.