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2 years ago

What is the discriminant of 6x2-8x+4=0

Mathematics

1 answer:

lapo4ka [179]2 years ago

3 0

Answer:

discriminant: 64

Step-by-step explanation:

The discriminant of a quadratic is the expression inside the radical of the quadratic formula.

b^ 2 − 4 ( a c )

Substitute in the values of a , b , and c .

( − 8 )^ 2− 4 ( 6 ⋅ 0 )

Simplify each term.

Raise − 8 to the power of 2.

64 − 4 ( 6 ⋅ 0 )

Multiply 6 by 0 .

64 − 4 ⋅ 0

Multiply − 4 by 0 .

64 + 0

Add 64 and 0 .

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Factor Trinomials:

notka56 [123]

Answer:

1. $2(x+2)(x+5)$

2. $8(x+4)^{2}$

Step-by-step explanation:

Problem #1:

1. Find the GCF (Greatest Common Factor)

$GCF = 2$

2. Factor out the GCF and simplify.

$2(x^{2} +7x+10)$

3. Factor $x^{2} +7x+10$

Which two numbers add up to 7 and multiply to 10?

2 and 5

Rewrite the expression using the above.

$(x+2)(x+5)$

4. Done!

$2(x+2)(x+5)$

Problem #2:

1. Find the GCF (Greatest Common Factor)

$GCF=8$

2. Factor out the GCF and simplify.

$8(x^{2} +8x+16)$

3. Use the perfect square formula. $a^{2} +2ab+b^{2} =(a+b)^{2}$

$a = x\\b=4$

$(x+4)^{2}$

4. Done!

$8(x+4)^{2}$

8 0

2 years ago

4x+4=2/3 (3x +9) - 18 solve for x

omeli [17]

Answer:

= − 8

Step-by-step explanation:

6 0

3 years ago

The graph of y= (x - 2)(x + 4) is shown. What is the y-intercept of this graph?

LenKa [72]

Answer:

The y intercept in -8

Step-by-step explanation:

6 0

3 years ago

Multiply. x^2 + 8x + 15/x-4 x x^2-16/2x+6

Sophie [7]

= 1/2 ( x + 5 ) ( x + 4 )

5 0

3 years ago

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Andru [333]

Nani!? Omae wa mou shindeiru

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3 years ago

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