Explanation

To subtract the polynomials:

(2x² + 7x + 5) - (3x² - 2x + 1)

= 2x² + 7x + 5 - 3x² + 2x - 1

= -x² + 9x + 4

Explanation

If x is an even number, then:

x + 3 will always be an odd number.

Explanation

The additive inverse of a number is the number that, when added to it, results in zero.

For -3/a, the additive inverse is:

3/a, since (-3/a) + (3/a) = 0

Explanation

To solve the equation$2x+7=-9x-4$, follow these steps:

Step 1: Simplify and bring like terms together

$$2x+7=-9x-4$$

Add $9x$ to both sides:

$$2x + 9x + 7 = -4$$$$11x + 7 = -4$$

Step 2: Subtract 7 from both sides

11x=−4−7
$$11x=-11$$

Step 3: Divide by 11

x=-11/11​
$$x=-1$$

Explanation

The correct answer is:

2 is abscissa and 4 is ordinate

In an ordered pair (x, y), x is the abscissa (the value on the x-axis) and y is the ordinate (the value on the y-axis).