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.
