I know of two ways to solve quadratic equations. The first is through factoring. Let us take the example (x^2)+2x+1=0. We can factor this equation out and the factors would be (x+1)(x+1)=0. To solve for the roots, we equate each factor to 0, that is
x+1=0; x+1=0
In this case, the factors are the same so the root of the equation is
x=1.
The other way is to use the quadratic formula. The quadratic formula is given as [-b(+-)sqrt(b^2-4ac)]/2a where, using our sample equation above, a=1, b=2 and c=1. Substitute these to the formula, and you will get the same answer as the method above.
C because drawing the blue marble doesn’t affect drawing the yellow marble because the blue marble was replaced
Answer:
I cant see it
Step-by-step explanation:
Answer:
17/12
Step-by-step explanation:
See picture.
I wrote your poblem as an additoin problem because 2 negitive numbers would make it possitve.
Example:
1 - (-2) = 1 + 2
