exam Maths Puzzle Numerical Ability

please help to graph on a number line :

x + 4 < or equal to 2 or x - 4 is NOT < or equal to -1, d = reals

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exam Other Question

49m2-9=0 Solve by factoring.

1. 3a squared - 36a + 81 = 0

2. 5x squared - 45 = 0

3. 2a squared - a - 21 = 0

4. 3n squared - 11n + 10 = 0

5. 2x squared - 7x -9 = 0