Solve Rational Equations Using Cross Multiplication

What is happening in the picture?

• distribution

• square rooting

• cross multiplication

• inverse operations

Tags

CCSS.6.EE.B.7

• x = 5

• x = 10

• x = 8

• no solution

Tags

CCSS.6.EE.B.7

• x = 2, 6

• x = -2, 3

• x = 3, -6

• no solution

Tags

CCSS.HSA.REI.A.2

Multiplying everything by the Lowest Common Denominator and then Solve.

• 1

• -2

• 2

• -1

Tags

CCSS.HSA.REI.A.2

Give an example of a rational equation that you would solve using cross multiplication.

Tags

CCSS.HSA.REI.A.2

Tags

CCSS.HSA.REI.A.2

Solve by cross-multiplying.

• x = -1, 5

• No Solution

• x = -4, 5

• x= -4

Tags

CCSS.HSA.REI.A.2

Solve for r

• 5

• - 5, 4

• - 5

• 5, 4

Tags

CCSS.HSA.REI.A.2

Solve and check for extraneous solutions

• x=5

• x= -5

• No Solution

Tags

CCSS.HSA.REI.A.2

Solve for x

• 4

• 2

• -2

• -4

Tags

CCSS.HSA.REI.A.2