Algebraic Manipulations Flashcards

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1
Q

3m + 4m + m = ?

A

8m

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2
Q

8m + 2n +7m - 7n = ?

A

15m - 5n

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3
Q

3x² + 4x - 5 - 7x² - 4x + 8 = ?

A

-4x² + 3

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4
Q

a(x + y) = ?

A

ax + ay

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5
Q

4(3x - 7) = ?

A

12x - 28

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6
Q

5(2a - 5b + 3c) = ?

A

10a - 25b + 15c

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7
Q

3x⁴(7x³ - 4x - 1) = ?

A

21x⁷ - 12x⁵ - 3x⁴

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8
Q

4(3x - 7) - 5(4x - 2) = ?

A

12x - 28 - 20x + 10 =

-8x - 18

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9
Q

(x + 4)(x + 6) = ?

A

x² + 4x + 6x + 24 =

x² + 10x + 24

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10
Q

(x + 7)(x + 4) = ?

A

x² + 7x + 4x + 28 =

x² + 11x + 28

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11
Q

(x - 5)(x - 2) = ?

A

x² -5x -2x + 10 =

x² - 7x + 10

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12
Q

(x + 6)(x - 3) = ?

A

x² + 6x - 3x - 18 =

x² + 3x - 18

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13
Q

(x + 6)(x - 8)

A

x² + 6x - 8x - 48 =

x² - 2x -48

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14
Q

(x + 5)(x - 5) = ?

A

x² + 5x - 5x - 25

x² - 25

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15
Q

(x + 5)² = ?

A

x² + 5x + 5x + 25 =

x² + 10x + 25

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16
Q

(x - 10)² = ?

A

x² - 10x - 10x + 100 =

x² - 20x + 100

17
Q

(2x + 5)(3x - 10) = ?

A

6x² + 15x -20x - 50 =

6x² - 5x - 50

18
Q

3(x + 4)(x + 5) = ?

A

3(x² + 5x + 4x + 20) =

3(x² + 9x + 20) =

3x² + 27x + 60

19
Q

2(4x + 3)(4x - 3) = ?

A

2(16x² + 12x - 12x - 9) =

2(16x² - 9)=

32x² - 18

20
Q

(a + b)(a - b) = ?

A

a² - b²

21
Q

(a - b)(a - b) = ?

A

a² - 2ab + b²

22
Q

(a + b)(a + b) = ?

A

a² + 2ab + b²

23
Q

(a + b)² = ?

A

a² + 2ab + b²

24
Q

If (x + 1/x)² = 4, what does x² + 1/x² = ?

A

(x + 1/x)(x + 1/x) = x² + 1 + 1 + 1/x²

x² + 1/x² = 4 - 2 = 2

25
Q

4x + 6y - 8 = ?

A

2(2x + 3y - 4)

26
Q

8ax + 12ay - 40az factored is ?

A

4a(2x + 3y - 10z)

27
Q

10a⁴y⁶z³ - 15a⁷y factored is ?

A

5a⁴y(2y⁵z³ - 3a³)

28
Q

x⁴y - xy³ + xy factored is ?

A

xy(x³ - y² + 1)

29
Q

9by + 12be + 4ye factored is ?

A

9by + 12be + 4ye

It cannot be modified. It’s considered prime.

30
Q

x⁴ - y⁴ factored is ?

A

(x² + y²)(x² - y²) =

x² + y²)(x + y)(x - y

31
Q

(x² - 1) factored is ?

A

(x + 1)(x - 1)

32
Q

x - 9
—– reduced and factored is ?
9 - x

A

(x - 9) 1

  • ——– = —– = -1
  • 1(x - 9) -1
33
Q

What is the reciprocal of 2 - ¼?

A

8/4 - 1/4 = 7/4 (then you flip it)

4/7

34
Q

x(1 - x)
——– = ?
(x - 1)

A

-x