Alessandro wrote the quadratic equation -6=x2+4x-1 in standard form. what is the value of c in his new equation?
c=-6
c=-1
c=5
c=7

c = 5

Step-by-step explanation:

A quadratic expression is an expression of the form

ax^2 + bx + c = 0

If we rewrite the expression, we get

-6=x^2+4x-1

x^2+4x -1 +6 = 0

x^2+4x +5 = 0

The answer is c = 5

The correct answer is third option

c = 5

Step-by-step explanation:

Points to remember

Standard form of a quadratic equation

ax² + bx + c = 0

It is given that, -6 = x² + 4x - 1

To find the standard form

-6 = x² + 4x - 1

⇒   x² + 4x - 1 = -6

x² + 4x - 1 + 6= 0

x² + 4x + 5 = 0

To find the value of c

Let equation be,  x² + 4x + 5 = 0

Here a = 1, b = 4 and c = 5

Therefore the correct answer is third option

c = 5

y-y1=4(x-x1)

step-by-step explanation:

this is point-slope form since you only have 4 as the slope it goes in place of m

hope this : )

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this