1. The square of a number equals nine times that number. Find the number.
A. O or 2
C. O or 6
B. O or 3
D. O or 9
2. The area of a square is 4x2 + 12x + 9 square units, which expression represents
the length of the side?
A. (3x + 2) units
C. (4x + 9) units
B. (2x + 3) units
D. (4x + 3) units
3. Forty-nine less than the square of a number equals zero. Find the number.
A. -3 or 3
C. -13 or 13
B. -7 or 7
D. O or 9
4. The area of triangle is 80 cm². If the height of the triangle is 6 cm less than its base,
find the base and its height.
A. b = 20 cm, h = 16 cm
C. b = 35 cm, h = 31 cm
B. b = 10 cm, h = 6 cm
D. b = 16 cm, h = 10 cm
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