Area Polynomials Quadratics

• two quadratic trinomials

• four monomials

• two linear binomials

Find the expression that represents the area of a rectangle with these dimensions:

Tags

CCSS.HSA.APR.A.1

A rectangle has an area of katex latex="4x^2+19x+12" square feet. If the length is (x + 4) feet, what is the width?

• (4x + 3) feet

• (4x - 3) feet

• (2x + 3) feet

• (2x - 3) feet

Tags

CCSS.HSA.APR.D.6

Hank factored 5n²-18n+9. His work is shown in the image. Is he correct? Why/why not?

• No, he set up the number puzzle wrong and found the wrong numbers that make the product and sum.

• No, he forgot to split the middle term using -15n and -3n to factor by grouping.

• Yes, those are the correct values to put into each factor.

• Yes, he's correct because he's a math teacher's son. ;)

Mathematical Equivalence

ON

Which answer choice describes  y = -3x² +7x - 2 accurately?

• opens up with a maximum

• opens up with a minimum

• opens down with a maximum

• opens down with a minimum 

Tags

CCSS.HSF-IF.C.7A

• x = -5

• x = 1

• -1

• x = -1

• x = 5

• x = 9

• x = -9

Tags

CCSS.HSA-REI.B.4B

x² - 9

• (x + 3) (x - 3)

• (x - 3) (x - 3)

• (x + 3) (x - 6)

• Can't factor using Diff. of Squares

Tags

CCSS.HSA.APR.C.4

What isn't this quadratic a Difference of Squares?

• It's not a difference

• 4 is not a perfect square

• 9 is not a perfect square

• Silly goose, it is a difference of squares!

• x² is not a perfect square

Tags

CCSS.HSA.APR.C.4

What is the Area?

Tags

CCSS.HSA.APR.A.1