Quiz about 7-1 Add & Subtract understanding?

Question 1

x + x =

Accepted Answer

$$2x$$

Answer

$$x^2$$

Answer

both

Answer

neither

Question 2

Which of these two Quadratic Trinomials Add to make a...

linear binomial?

Accepted Answer

ADD $$\left(3x^2+4x+5\right)+\left(-3x^2+4x+5\right)$$

Answer

ADD $$\left(3x^2+4x+5\right)+\left(3x^2-4x-5\right)$$

Answer

ADD $$\left(3x^2+4x+5\right)+\left(-3x^2+4x-5\right)$$

Question 3

Which of these two Quadratic Trinomials SUBTRACT to make a...

linear binomial?

Accepted Answer

SUBTRACT $$\left(3x^2+4x+5\right)-\left(3x^2-4x-5\right)$$

Answer

SUBTRACT $$\left(3x^2+4x+5\right)-\left(-3x^2+4x+5\right)$$

Answer

SUBTRACT $$\left(3x^2+4x+5\right)-\left(-3x^2+4x-5\right)$$

Question 4

Are there any ERRORS?

Accepted Answer

cubic

Accepted Answer

not in standard form

Answer

trinomial

Answer

No errors

Question 5

Is any of the solution correct?

Accepted Answer

$$-8x^2$$

Answer

$$-9$$

Answer

No, everything is wrong

Question 6

$$\left(3x+x^2-5\right)-\left(3x-6+4x^2\right)$$

After you SUBRACT what will the answer be?

Accepted Answer

Quadratic

Answer

Quartic

Answer

Linear

Answer

Constant

Question 7

$$\left(3x+x^2-5\right)-\left(3x-6+4x^2\right)$$

After you SUBRACT what will the answer be?

Accepted Answer

Binomial

Answer

Monomial

Answer

Trinomial

Answer

Polynomial

Question 8

$$\left(3x+x^2-5\right)-\left(3x-6+4x^2\right)$$

After you SUBRACT what will the answer be?

Accepted Answer

$$-3x^{2\ }+1$$

Answer

$$5x^{2\ }+6x-11$$

Answer

$$-3x^{2\ }+6x+1$$

Answer

$$5x^{2\ }-11$$

7-1 Add & Subtract understanding?