book Maths Puzzle Numerical Ability

solve by factoring.
1) x2-5x+6=0
2) 2x2-9x-5=0
3) 3x2+5x-2=0

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book Other Question

Write the equation of each line. Give the answer in slope-intercept form.

The line through (-1, -@0 with slope 3/7 what is the exact value of sin 22.5 degrees using the sum, difference, half, or double angle formulas and the exact value chart in the solution.