Math 8 - Study Guide for Tuesday's Test - Part 1

Find the sum of 4x^2 - 3x + 6 and -7x^2 + 3x + 6.

Answer: -3x^2 + 12

Find the sum of 4a^2 - 7a - 5 and -8a^2 - 3a + 7.

Answer: -4a^2 - 9a + 2

Preform the indicated operations and express as a binomial: -3(x + 2) - x

Answer: -4x - 6

Express in simplest form: (5a^2 - 3a + 8) + (-4a^2 - 1) + (15a + 11).

Answer: 1a^2 + 12a + 18

Express the sum of 4x^2 - 7x + 6 and -3x^2 + 9x - 11 as a trinomial.

Answer: 1x^2 + 2x - 5

From 5x^2 + 3x - 6 subtract 4x^2 - 5x + 6.

Answer: 1x^2 + 8x - 12

Express the sum of -2x^2 + 7x - 6 and 3x^2 - 8x - 1 as a trinomial.

Answer: 1x^2 - 1x - 7

Express the sum of 4x^2 - 3x + 2 and -2x^2 + 7x + 3 as a trinomial.

Answer: 2x^2 + 4x + 5

From 5x^2 - 6x + 8 subtract 3x^2 - 2x - 4.

Answer: 2x^2 - 4x + 12

From 7x^2 - 4x subtract 5x^2 + 2x.

Answer: 2x^2 - 6x

From 9x^2 - 8x + 6 subtract 7x^2 - 2x + 6

Answer: 2x^2 - 6x

Express the sum of 3x^3 - 7x^2 + 2 and -x^3 + 9x^2 - 5 as a trinomial.

Answer: 2x^3 + 2x^2 - 3

Find the sum of 5x^3 - 3x^2 + 5 and -2x^3 + 6x^2 - 5.

Answer: 3x^3 + 3x^2

Express the sum of 3x^2 - 2x + 5 and x^2 + 2x - 8 in simplest form.

Answer: 4x^2 + 0x - 3

Subtract 5x^2 - 7x - 6 from 9x^2 + 3x - 4.

Answer: 4x^2 + 10x + 2

From 6x^2 - 3x + 9 subtract 2x^2 - 5x + 8.

Answer: 4x^2 + 2x + 1

Find the sum of 3x^2 + 5x - 1 and x^2 - 2x - 7.

Answer: 4x^2 + 3x - 8

Subtract 2x^2 - 5x + 8 from 6x^2 + 3x - 2 and express the answer as a trinomial.

Answer: 4x^2 + 8x - 10

Express the sum of x^2 - 3x + 5 and 3x^2 - 2x - 2 as a trinomial.

Answer: 4x^2 - 5x + 3

Find the sum of 2x^2 - 5x - 2 and 4x^2 - 6x + 8.

Answer: 6x^2 - 11x + 6

Simplify by combining like terms: (5a + 3b) + 2(a - 3b).

Answer: 7a - 3b

What is the sum of (2a + 3b - 5) and (5a - 3b - 1)?

Answer: 7a - 6

Find the sum of 7x^2 - 3x + 5 and 8x + 2.

Answer: 7x^2 + 5x + 7

From y^2 + 5y - 7 subtract y^2 - 3y - 4.

Answer: 8y - 3

Find the sum: (9m - 5n + 2) + (-4m - n - 1) + (-5m + 6n - 1).

Answer: Om - 0n + 0. The equation is equal to zero.