Lets call the number 'n'
plus means addition
is means the equal sign
so that as an expression would be
n+4=7
Answer:
x = ±√11 +2
Step-by-step explanation:
Given in the question an equation,
x²- 4x - 7 = 0
Step 1
take 7 to the right side of equation
x²- 4x = 7
Step 2
To create a trinomial square on the left side of the equation, find a value that is equal to the square of half of b, the coefficient of x
2ab = -4x
2xb = -4x
b = -2
Step 3
Take square of b and add it to each side of the equation.
x²- 4x + (-2)²= 7 + (-2)²
x²- 4x + 4 = 7 + 4
x²- 4x + 4 = 11
Step 4
Factor the perfect trinomial square
(x−2)² = 11
Step 5
take square root on both sides
√(x−2)² = √11
(x-2) = ±√11
x = ±√11 +2
Hope you could understand.
If you have any query, feel free to ask.
The player has a total of 18 goals scored and 6 assists made.
<h3>
Equation</h3>
Equation is an expression used to show the relationship between two or more numbers and variables.
Let x represent the number of goals scored and y represent the number of assists. Since the combined goals and assist is 24, hence:
x + y = 24 (1)
Also:
2x + y = 42 (2)
From equation 1 and 2:
x = 18, y = 6
The player has a total of 18 goals scored and 6 assists made.
Find out more on Equation at: brainly.com/question/2972832
