CA Algebra I: Factoring quadratics | Quadratic equations | Algebra I | Khan Academy

What is the greatest common factor (GCF) of the terms in the expression 3a² - 24ab + 48b²?

• a

• 3

• 3a

• 3b

What is the factored form of 3a² - 24ab + 48b²?

• 3(3a - 8b)(a - 6b)

• 3(3a - 16b)(a - 3b)

• 3(a - 4b)(a - 4b)

• 3(a - 8b)(a - 8b)

Which of the following is a factor of x² - 11x + 24?

• x + 3

• x - 3

• x + 4

• x - 4

When factoring the expression 9t^2 + 12t + 4 into the form (3t + a)(3t + b), what must be true about the values of 'a' and 'b'?

• a + b = 12

• a * b = 4

• a = b

• a = b and a * b = 4

Which of the following shows 9t^2 + 12t + 4 factored completely?

• (3t + 2)^2

• (3t + 4)(3t + 1)

• (9t + 4)(t + 1)

• 9t^2 + 12t + 4

Which of the following is the general form for the difference of squares?

• a^2 + b^2

• (a + b)^2

• a^2 - b^2

• a^2 - 2ab + b^2