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4 years ago

Solve this problem out

Mathematics

1 answer:

Phoenix [80]4 years ago

7 0

Solving the equation $2x^2-12x+6=0$ using completing square method we get $(x+3)^2=6$

So, Option A is correct.

Step-by-step explanation:

We need to solve the equation $2x^2-12x+6=0$ using completing square method.

Solving using completing square method

$2x^2-12x+6=0$

For completing the square we need to make formula a^2-2ab+b^2=(a-b)^2

Divide the equations by 2

$x^2-6x+3=0$

Adding and subtracting (3)^2 on both sides.

$(x)^2-2(x)(3)+(3)^2-9+3=0$

$(x+3)^2-6=0$

$(x+3)^2=6$

Solving the equation $2x^2-12x+6=0$ using completing square method we get $(x+3)^2=6$

So, Option A is correct.

Keywords: Solving Quadratic Equation

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Find the volume of the cylindrical barrel that has a diameter of 14mm and a height of 4mm. Round your answer to the nearest tent

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Answer: 615.4mm cube

Step-by-step explanation:

The volume of a cylinder is given as πr^2h

where r= radius

h = height

π = 3.14

From the question, diameter is 14mm and height is 4mm.

To get the radius, we divide the diameter by 2 which will give:

= 14mm/2 = 7mm

Volume= πr^2h

= 3.14 × 7^2 × 4

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Answer:

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Step-by-step explanation:

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See attachment for the step by step solution