Please. Help.

1. Solve : al * + 4 * =* - 2* - 17X -5 b) 2 (x+3 ) - 5 (x+3) 4 B) 2. Solve: - 4.9+ + 9.8 + 73.5 =0 4 3. Are *=3 and X = -4 THE SOLUTION TO THE EQUATION X- 7X +12=0? Explain, How Do you know ? 2 C) 4. IF You NEED TO FIND THE EQUATION OF A PARABOLA FROM ITS GRAPH, WHAT DO you NEED TO KNOW IN ORDER TO USE : - a ) y = a ( x - r) ( x - s ) 2 b ) y = a ( x - h ) + k 5. DETERMINE THE EQUATION OF A QUADRATIC FUNCTION IN STANDARD FORM IF IT HAS X-INTERCEPTS - 2, -5 AND Y-INT. - 10 4)