Year 10 Expanding Perfect Squares

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The expansion of (2x + 1)² is

1 point

4x² + 1

4x² + 2x + 1

4x² + 4x + 1

2x² + 1

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(x + 5)² is the same as

1 point

x² + 25

x² + 5x

x² + 5x + 25

x² + 10x + 25

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(a + b)² gives

1 point

a² - b²

a² + 2ab + b²

a + 2b

a - 2b

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(x - 4)²

1 point

x² – 16

x² + 16

x² – 8x + 16

x² + 8x – 16

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(t + 3)²

1 point

t² + 9

t² + 3

t² + 3t + 9

t² + 6t + 9

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(4x – 1)²

1 point

4x² – 1

16x² + 1

16x² – 8x + 1

4x² – 8x + 1

Clear selection

(3x² − 2)²

1 point

9x² – 4

9x² + 4

9t⁴ – 4

9t⁴ – 12x² + 4

Clear selection

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