Answer: -7twice
Step-by-step explanation:
This is a question on root of quadratic equation. The interpretation of the question
x² 14x + 49 is
x² + 14x + 49 = 0.meaning that we are to find two possible values for x that will make the expression equal 0.
We can use any of the methods earlier taught. For the purpose of this class, I am using factorization methods
x² + 14x + 49 = 0
Now, find the product of the first and the last terms, is
x² × 49 = 49ײ
Now find two terms such that their productbis 49x² and their sum equals 14x, the one in the middle.
We have several factors of 49x² but only one will give sum of 14x. Because of the time, I will only go straight to the required factors .
49x² = 7x × 7x and the sum gives 14x the middle terms..
Now we now replace the middle one by the factors and then factorize by grouping.
x² + 14x + 49 = 0
x² + 7x + 7x + 49 = 0
x(x + 7) + 7(x + 7) = 0
(x + 7)(x + 7). = 0
Now to find this value of x,
x + 7 = 0
x. = -7twice.
The root of the equation = -7twice.
396 duds in 1,584 fireworks all together. Divide 1,584 by 4.
Answer:
-1/2 is your answer.
Step-by-step explanation:
The slope formula is (y_2 - y_1)/(x_2 - x_1)
The y's are -3 and 2, while the x's are 9 and -1.
(-3-2)/(9-(-1))=-5/10=
-1/2 is your answer.
Answer:
the answer is 3.2 because your divide 16 by 5.
Step-by-step explanation:
