Subtraction of Polynomials

If a rectangular enclosure has a length that measures of 2x - 9 and a width that measures 6x - 2, find the perimeter.

• 16x - 22

• 8x - 16

• 16x + 22

• 8x + 16

Tags

TEKS.MATH.9-12.IV.C.1

TEKS.MATH.9-12.II.B.1

If a rectangular enclosure has a length that measures of 3x - 1 and a width that measures 2x - 3, find the perimeter.

Mathematical Equivalence

ON

Betty's rectangular enclosure has a perimeter of 14x - 20. If the length measures 4x - 16, what is the measurement of the width?

(P = 2l + 2w)

• 3x + 6

• 6x + 12

• 12x + 24

• 22x - 12

Betty's rectangular enclosure has a perimeter of 10x - 30. If the length measures x - 12, what is the measurement of the width? (P = 2l + 2w)

Mathematical Equivalence

ON

Find the difference. 
(3- 2x + 2x²) - (4x -5 +3x²)

• x_² + 6x + 8

• 2x² + 5x - 7

• -x² -6x + 8

• -2x² + 11x - 4

Find the sum.

(2x² + 5x - 7) + ( 3 - 4x² + 6x)

• 2x² + 3x +1

• -2x² - 11x -4

• 2x²+ 5x -7

• -2x² + 11x -4

Find the difference.

(3- 2x + 2x²) - (4x -5 +3x²)

• x² + 6x + 8

• 5x² - 2x - 2

• -x² -6x + 8

• -2x² + 11x - 4

(4x³-5x²+3x)+(-2x³-x²+6x)

• 2x³-6x²-9x

• 2x³+6x²+9x

• -2x³-6x²+9x

• 2x³-6x²+9x

(2x + 5y - z) + (-6x - 4y + 7z)

• -4x +6y + 6z

• 4x + y + 6z

• -4x - y + 6z

• -4x + y + 6z

Simplify each expression. 
(6x + 4x⁴ - 3x²) + (7x⁴ + 5x² + 8x)

• 11x⁴  + 2x² + 14x

• 16x⁴  + x² + 14x

• 11x⁴  + x² + 14x

• 11x⁴  + 2x² + 10x