Click the correct answer (True & False).
Click the correct answer.
What is the value of (x + a)(x + b)?
x2 – (a + b)x + ab
x2 + (b – a)x – ab
x2 + (a – b)x – ab
x2 + (a + b)x + ab
What is the value of (3x – 4y)2?
9x2 – 24xy + 16y2
9x2 + 24xy + 16y2
9x2 – 24xy – 16y2
9x2 + 24xy – 16y2
What is the value of (x2y – xy2)2?
x4y2 – 4x3y3 + x2y4
x4y2 – 2x3y3 – x2y4
x4y2 – 2xy3 + x2y4
x4y2 – 2x3y3 + x2y4
What is the value of (x + 2)(x + 6)?
x2 + 6x + 12
x2 + 12x + 12
x2 + 8x + 12
x2 + 8x + 8
What is the value of (2a – 3b)(2a + 3b)(4a2 + 9b2)?
16a4 + 81b4
81a4 – 16b4
8a4 – 9b4
16a4 – 81b4
What is the square of 5x + 2y?
25x2 + 20xy + 4y2
5x2 + 10xy + 2y2
25x2 – 20xy + 4y2
5x2 + 20xy – 4y2
Click the correct answer.
(x + a)(x – b) = x2 +
(a + b)x – ab
(b – a)x – ab
(a – b)x – ab
(x + 3) × (x – 4) =
x2 + x – 12
x2 – x + 12
x2 – x – 12
(3x + 4y) × (3x – 4y) =
9x2 + 16y2
9x2 – 16y2
3x2 – 4y2
