Mathematics .BAsic algebra -Abbas

What is the value of x in the equation 2x + 3 = 11? A) 4 B) 3 C) 5 D) 2

• 1

• 6

• 4

• -2

Which of the following is an identity? A) (a + b)² = a² + b² B) (a + b)² = a² + 2ab + b² C) a² - b² = (a + b)(a - b) D) a² + b² = (a - b)²

• a² - b² = (a + b)²

• B) (a + b)² = a² + 2ab + b²

• (a + b)² = a² + 2b²

• a² + b² = ab

What is the result of (x + 2)²? A) x² + 4 B) x² + 2x + 4 C) x² + 2 D) 2x + 4

• x² + 2x

• B) x² + 2x + 4

• x² + 4x + 4

• (x + 2)(x + 2)

Which of the following is the factored form of x² - 9? A) (x + 3)(x - 3) B) (x - 3)(x - 3) C) (x + 9)(x - 9) D) (x + 3)(x + 3)

• (x + 6)(x - 6)

• (x - 3)(x + 3)

• (x + 1)(x - 1)

• A) (x + 3)(x - 3)

If a = 3 and b = 4, what is the value of (a - b)²? A) 1 B) 7 C) 11 D) 49

• 8

• A) 1

• 16

• 0

What is the common factor of 12x² + 8x? A) 4x B) 2x C) 3x D) 6x

• 12x

• 4x

• 2

• 8x

Which of the following represents the quadratic formula? A) x = -b ± √(b² - 4ac) B) x = b ± √(b² + 4ac) C) x = -b ± √(b² + 4ac) D) x = b ± √(b² - 4ac)

• x = b ± √(b² - 4ac)

• A) x = -b ± √(b² - 4ac)

• x = -b ± √(b² + 4ac)

• x = -b ± √(b² - 4ac)

What is the value of x in the equation x² - 5x + 6 = 0? A) 2, 3 B) 1, 6 C) 3, 2 D) 0, 6

• A) 1, 5

• B) 4, 2

• C) 5, 1

• A) 2, 3

Which of the following is a perfect square trinomial? A) x² + 6x + 9 B) x² + 5x + 6 C) x² - 4 D) x² + 2x - 8

• x² + 4x + 4

• x² - 2x + 1

• x² + 3x + 2

• A) x² + 6x + 9

What is the result of 3² × 3³? A) 3⁵ B) 3⁶ C) 3⁴ D) 3²

• 3³

• 3⁸

• 3⁵

• 3⁷