Quiz #3 Math 8 1st Q - Factoring

Factor using GCF or monomial factoring: 2n² - 8n³

• 2n² (n - 4n²)

• 2n²(1 - 4n)

• 2n³(10 - 8n²)

• 3n(1-4n)

Find the fators of 10x³ + 2x² + 4x

• 10(x³ + 2x² + 4x)

• 2x(5x² + x + 2)

• 10x(x² + 2x + 4)

• x(10x² + 2x + 4)

Factor completely 10x³ - 15x

• x(10x² - 15)

• 5(2x³ - 3x)

• 5x²(10x - 3)

• 5x(2x² - 3)

What is the GCF of the terms below?

• 8x

• 6x²

• 12x²

• 12x³

What is the greatest common factor of 20a²b² and 50b³?

• 100a²b²

• 10b³

• 10ab²

• 10b²

In ( x² - 100 ) is equal to ( x + 10 ) and _____.

• ( x + 10)

• ( x - 10)

• x

• 10

Which is an example of difference of two squares?

• ( x³ - 4)

• ( x² + 100)

• ( x² - 3)

• (25x² - 4)

If the area of your garden is ( d^{2 _} 16 ) and the length is

( d + 4) , what is the width?

• ( d+ 2)

• ( d - 2)

• (d - 4)

• ( d + 4)

a² - b² = ( a + b ) ( a - b ) is the pattern in factoring the difference of two squares.

• True

• False

Factor 18x² − 8.

• 2(3x + 2)(3x - 2)

• (3x + 2)(3x - 2)

• 2(9x² - 4)

• (9x² - 4)