exam Maths Puzzle Numerical Ability

i was wondereing if there were any lessons on your website that shows the following problem: Factoring axsquared+bx+c. I need all the help i can get. thanks.

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exam Other Question

Find the corresponding y values for x = -4, -3, -2, -1, 0, 1, 2 if y = x^2 + 2x- 3. help this is not sinking in at all.
Solve the following equations for the unknown.

1. (2 points) 5x = 20

2. (2 points) 7x - 3 = 18

Graph the following equations; calculate the slope, x-intercept, an