Amazing Algebra Flashcards

1
Q

Expand 5(x + 3)

A

5x + 15

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2
Q

Expand m(m - 5)

A

m2 - 5m

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3
Q

Expand 3a(2a - 4)

A

6a2 - 12a

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4
Q

Expand and simplify 2(3c + d) + 3(c + d)

A

6c + 2d + 3c + 3d = 9c + 5d

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5
Q

Factorise 2r + 6

A

2(r + 3)

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6
Q

Factorise 9h - 15

A

3(3h - 5)

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7
Q

Factorise 8hg + 4gf

A

4g(h + f)

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8
Q

Expand and simplify (x + 3)(x + 2)

A

F: x2 x2 + 5x + 6

O: 2x

I: 3x

L: 6

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9
Q

Expand and simplify (x - 9)(x + 4)

A

F: x2 x2 - 5x - 36

O: 4x

I: -9x

L: -36

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10
Q

Aiming high?

Factorise x2 + 4x - 21

A

put the brackets back in

(x + 7)(x - 3)

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11
Q

Aiming high?

Expand and simplify (2x + 3)2

A

(2x + 3)(2x + 3) = 4x2 + 12x + 9

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12
Q

simplify 4x + 3x

A

7x

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13
Q

simplify 3a + 2b + 5a + 4b

A

8a + 6b

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14
Q

simplify 5g + 4h - 3g + h

A

2g + 5h

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15
Q

simplify 7x - 3y + x - 4y

A

8x - 7y

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16
Q

simplify 4a + 5 - 6a + 9

A

14 - 2a

17
Q

simplify 3x2 + 2x + 5x2

A

8x2 + 2x

18
Q

simplify a x a x a x a

A

a4

19
Q

simplify a + a + a

A

3a