Math Quiz Set 1

Posted by admin at March 5, 2019

Combine terms: 12a + 26b -4b – 16a.

4a + 22b,

-28a + 30b,

-4a + 22b,

28a + 30b.

Correct! Wrong!

12a + 26b -4b – 16a. = 12a – 16a + 26b – 4b. = -4a + 22b.

Which is the smallest?

-1

-1/2

Correct! Wrong!

Which is greater than 4?

-5

-1/2

-25

Correct! Wrong!

Multiply: (x – 4)(x + 5)

x2 + x - 20.

x2 - x - 20,

x2 - 4x - 20,

x2 + 5x - 20,

Correct! Wrong!

(x – 4)(x + 5). = x(x + 5) -4(x + 5). = x2 + 5x – 4x – 20. = x2 + x - 20.

Solve: 5x2 – 15x – 20.

5(x-4)(x+1),

5(x+4)(x+1).

-2(x-4)(x+5),

-5(x+4)(x-1),

Correct! Wrong!

5x2 – 15x – 20. = 5(x2 – 3x – 4). = 5(x2 – 4x + x – 4).

Math Quiz set 1

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