The best method that will work for any quadratic equation is to use the quadratic formula: x = (-b±√(b² - 4ac))/2a, this will work for any quadratic of the form ax² + bx + c = 0.
As for the last equation in the attachment, that is a cubic equation, these are much trickier to solve and as such the formula is much longer and very complicated. Therefore it is easier to see if it can be broken down into a linear term and a quadratic. This can be done by substituting integer values of x into the equation to see if it holds true. If both sides of the equation are equal for a given value of x then the equation ax³ + bx² + cx + d can be rewritten as (Ax + B)(px² + qx + r). This can then be put into the quadratic formula mentioned above.
Answer:
Step-by-step explanation:
There are 1,400 daffodils in the flower garden covering an area of 345 square feet. So, the area covered by 1 daffodil, the unit rate, is found as shown below.
Now, use the unit rate to determine the area required to have 250 more daffodils as shown below.
Therefore, the area required to add 250 daffodils is approximately 61.6 square feet.
The answer to this question is A
Answer:
426
Step-by-step explanation:
6(
)
= 453 - 6 * 4
= 453 - 27
= 426
Hello!
Begin isolating for x by subtracting 2 from both sides:
Further simplify by multiplying both sides by 3:
Multiply both sides by -1 to cancel out the -x:
