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Quadratic-Area-puzzles

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Quadratic Area puzzles
In each of these questions, find the marked side or area in terms of 𝑥.
You can do your workings out
in this column.
1.
?
2𝑥 2 + 9𝑥 + 4
𝑥+3
𝑥 2 + 5𝑥 + 6
2𝑥 + 7
2.
𝑥+2
𝑥2 − 4
6𝑥 2 + 3𝑥 − 3
4𝑥 2 + 8𝑥 − 5
2𝑥 − 1
3.
?
𝑥+3
4𝑥 2 − 1
2𝑥 2 + 5𝑥 − 3
𝑥
𝑥 2 + 3𝑥 − 4
?
𝑥−1
4.
𝑥+3
𝑥 2 + 8𝑥 + 15
𝑥 2 + 3𝑥 − 10
2𝑥 2 + 13𝑥 − 7
2𝑥 2 + 5𝑥 + 2
𝑥2 − 4
𝑥2
2𝑥 2 + 𝑥 − 3
6𝑥 2 + 7𝑥 + 2
3𝑥 2 − 7𝑥 − 6
𝑥 2 + 4𝑥 + 3
2𝑥 2 + 𝑥 − 1
?
4𝑥 2 − 4
Inspired by Naoki Inaba
2𝑥 − 2
2𝑥 2 − 2
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