Quiz about Multiplying Polynomials 10B/10D

Question 1

Which expression is equivalent to $$\left(n-4\right)\left(2n+7\right)$$ ?

Accepted Answer

$$2n^2-n-28$$

Answer

$$3n+3$$

Answer

$$n-28$$

Answer

$$2n^2-15n-28$$

Answer

$$2n^2+3n-3$$

Question 2

Which expression is equivalent to $$\left(\frac{3}{2}p+1\right)\left(\frac{1}{2}p+3\right)$$ ?

Accepted Answer

$$\frac{3}{4}p^2+5p+3$$

Answer

$$2p^2+3$$

Answer

$$4p^2+3$$

Answer

$$\frac{3}{4}p^2+10p+3$$

Answer

$$4p^2+2p+3$$

Question 3

Which expression is equivalent to $$\left(h^2+9h-1\right)\left(-4h+3\right)$$ ?

Accepted Answer

$$-4h^3-33h^2+31h-3$$

Answer

$$4h^3+39h^2-23h-3$$

Answer

$$-4h^3-39h^2+23h+3$$

Answer

$$4h^3+33h^2-31h+3$$

Answer

$$-4h^3+33h^2-23h+3$$

Question 4

A floor plan is shown for a storage facility. All dimensions are given in feet. Which expression represents the area of the storage facility in square feet?

Accepted Answer

$$20x^2-4x-16$$

Answer

$$20x^2+36x-16$$

Answer

$$16x^2-16$$

Answer

$$9x^2-16$$

Answer

$$20x^2-16$$

Question 5

Which expression is equivalent to $$35m^2-63$$ ?

Accepted Answer

$$7\left(5m^2-9\right)$$

Answer

$$-7\left(5m^2+9\right)$$

Answer

$$7m\left(5m-9\right)$$

Answer

$$-7m\left(5m+9\right)$$

Answer

$$5\left(7m^2-9\right)$$

Question 6

Which expression is equivalent to $$210d^2-63d$$ ?

Accepted Answer

$$21d\left(10d-3\right)$$

Answer

$$21d\left(10d+3\right)$$

Answer

$$21\left(10d+3\right)$$

Answer

$$21\left(10d-3\right)$$

Answer

$$21\left(-10d+3\right)$$

Question 7

Which expression is equivalent to $$-28x^2+35x$$ ?

Accepted Answer

$$-7x\left(4x-5\right)$$

Answer

$$7x\left(4x+5\right)$$

Answer

$$7x\left(4x-5\right)$$

Answer

$$-7x\left(4x+5\right)$$

Answer

$$7x\left(-4x-5\right)$$

Question 8

Find the area of the square.

Accepted Answer

$$x^2-20x+100$$

Answer

$$4x-40$$

Answer

$$x^2-100$$

Answer

$$x^2-20x-100$$

Answer

$$x^2+4x+100$$

Question 9

Joy multiplied $$\left(3x-3\right)$$ by a second binomial. If the product was $$9x^2-18x+9$$ , what is was the second binomial?

Accepted Answer

$$\left(3x-3\right)$$

Answer

$$\left(3x+3\right)$$

Answer

$$\left(3x-6\right)$$

Answer

$$\left(3x+6\right)$$

Answer

$$\left(-3x+3\right)$$

Question 10

Simplify the following $$-9w\left(8w-4\right)$$

Accepted Answer

$$-72w^2+36w$$

Answer

$$-72x^2-36w$$

Answer

$$72w^2+12w$$

Answer

$$-72w^2-9w$$

Answer

$$72w^2+36w$$

Question 11

Camden multiplied two binomials to get $$49x^2-100$$ . Find the two binomials that Camden multiplied.

Accepted Answer

$$\left(7x-10\right)\left(7x+10\right)$$

Answer

$$\left(7x-10\right)\left(7x-10\right)$$

Answer

$$\left(7x+10\right)\left(7x+10\right)$$

Answer

$$\left(-7x-10\right)\left(-7x-10\right)$$

Answer

$$\left(-7x+10\right)\left(-7x+10\right)$$

Multiplying Polynomials 10B/10D

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