Set each equation equal to 0.
Try to factor.
Set each factor equal to 0.
Solve for x.
I'll pick one of your problems to show you how to solve.
Let's try problem #2:
12x^2 + 30x = -12
Set the equation equal to 0:
12x^2 + 30x + 12 = 0
Try to factor:
(6x + 3)(2x + 4) = 0
Set each factor equal to 0:
6x + 3 = 0
2x + 4 = 0
I'll let you finish this to solve for x.
(Hint: there will be two possible solutions.)
Try this technique with your other problems.
I hope this will help get you started.
Answer this Question
Algebra - 2(3x - 7) + 4 (3 x + 2) = 6 (5 x + 9 ) + 3 how will solve it? well you...
Math - find any stationary points of the function g(x) = (2x-3)square root of 5+...
Algebra - There are two solutions to | 16x - 5 | = 3. The greatest solution is ...
calculus - i need to find the derivative using chain rule: (x^2 + 2x - 6)^2 (1-x...
algebra - Solve the system by addition or substitution. 16x-4y=20 y=4x-4 I ask ...
Algebra II - How do I solve the following problems?? 1. Factor: 4x^2-100y^2 2. ...
math - Solve the equation for x 30x+10x-40=16x+8
Math - Solve the equation for x. 30x+10x=40=16x+8
math, algebra - can someone correct this for me or help me. 6x^2y^3+ 9x^2y^3 ...
Algebra - 16x^3 - 12x^2 + 20x - 15 factored = (4x^2 + 5)(4x - 3)?