answer the question if possible
Answers
Answer:
5x^2-36=0
Step-by-step explanation:
5x2-36=0
Two solutions were found :
x = ±√ 7.200 = ± 2.68328
Step by step solution :
Step 1 :
Equation at the end of step 1 :
5x2 - 36 = 0
Step 2 :
Trying to factor as a Difference of Squares :
2.1 Factoring: 5x2-36
Theory : A difference of two perfect squares, A2 - B2 can be factored into (A+B) • (A-B)
Proof : (A+B) • (A-B) =
A2 - AB + BA - B2 =
A2 - AB + AB - B2 =
A2 - B2
Note : AB = BA is the commutative property of multiplication.
Note : - AB + AB equals zero and is therefore eliminated from the expression.
Check : 5 is not a square !!
Ruling : Binomial can not be factored as the
difference of two perfect squares
Equation at the end of step 2 :
5x2 - 36 = 0
Step 3 :
Solving a Single Variable Equation :
3.1 Solve : 5x2-36 = 0
Add 36 to both sides of the equation :
5x2 = 36
Divide both sides of the equation by 5:
x2 = 36/5 = 7.200
When two things are equal, their square roots are equal. Taking the square root of the two sides of the equation we get:
x = ± √ 36/5
The equation has two real solutions
These solutions are x = ±√ 7.200 = ± 2.68328
Two solutions were found :
x = ±√ 7.200 = ± 2.68328
Answer:
Step-by-step explanation:
1 . (y-2)(y+2)
y^2 + 2y - 2y - 4
y^2 - 4
it is a quadratic equation