Grade 8

It is obtained by multiplying a whole number by itself.

• Perfect Square

• Perfect Cube

• Square Root

• Factorial

Variables whose exponents is divisible by 2.

• Even numbers

• Square Variables

• Perfect Cube Constant

• Perfect Square Constant

What is the complete factored form of 4𝑥² + 16𝑥𝑦 + 16𝑦²?

• a. (2𝑥 + 4𝑦)²

• (2𝑥 − 4𝑦)²

• (2x+4y)(2x-4y)

A rational algebraic expression is undefined if the denominator is equal to _____?

• 0
• 1
• Infinity
• Any real number

• none of the above

The length of rectangle is (5x+2) cm and its width is (3x+1) cm. Find its area.

• 15x²-11x+2 cm²

• 15x²-13x+2 cm²

• 15x²+13x+2 cm²

• 15x²+11x+2 cm²

All the following are factors of 36x² Except one. What is it?

• 6x

• none of the above

• 3

• -3

• 0

• none of the above

Express the dimensions of a square whose area is 361m²n²-266mn+49?

• (19mn-7)(19mn+7)

• (19mn-7)(19mn-7)

• (19mn+7)(19mn+7)

• none of the above

• 1