Rational Expressions

Find the LCM or LCD of 3x⁵ and 2x

• 6x⁵

• 6x⁶

• x

• 5x⁶

Tags

CCSS.7.EE.A.1

View the image for your question!

• because you can't cancel any factors in the second fraction

• because we're adding, not simplifying

• because the denominators would no longer be common

Tags

CCSS.HSA.APR.D.7

Choose the next step for the problem in the image.

• factor the numerator and denominator

• cancel out common terms

• add like terms

• the problem is already simplified

Tags

CCSS.HSA.APR.D.6

Choose the next step for the problem in the image.

• factor the numerator and denominator

• cancel out common terms

• change to a multiplication problem

• find the lowest common denominator

Tags

CCSS.HSA.APR.D.6

Choose the next step for the problem in the image.

• factor the numerator and denominator

• cancel out common terms

• subtract the numerators and keep the same denominator

• cancel out the denominators

Tags

CCSS.HSA.APR.D.7

Choose the next step for the problem in the image.

• factor the numerator and denominator

• cancel out common terms

• subtract the numerators and keep the same denominator

• find the least common denominator

Tags

CCSS.HSA.APR.D.7

For what values of x is the problem in the image undefined?

• x=4, x=-5

• never

• x=-4, x=5

• x=-4, x=-5

Tags

CCSS.HSA.APR.D.7

What is the first step ALWAYS in factoring?

• determine how many terms you have

• create a box

• find two numbers that multiple to ac and add to b

• look for a GCF and factor it out

What factors can cancel from the image?

• the x can cancel

• the negative can cancel

• nothing can cancel

Tags

CCSS.HSA.APR.D.6

How could you factor the polynomial in the image?

• cannot be factored

• it's a sum of squares

• it's a sum of cubes

• take out the GCF

Tags

CCSS.HSA.APR.C.4