3 years ago

What two numbers have a product of -30 and a sum of -1?

Mathematics

2 answers:

Maurinko [17]3 years ago

4 0

Answer:

5 and -6

Step-by-step explanation:

siniylev [52]3 years ago

4 0

Answer:

5 and -6

Explanation:

$xy = - 30 \\ x + y = - 1$

and you solve using the substition method

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Read 2 more answers

the first three steps of completing the square to solve the quadratic equation X2+4X-6=0 are shown below. what re the next 3 ste

Vilka [71]

Answer:

see the explanation

Step-by-step explanation:

<u><em>The complete question is</em></u>

The first three steps of completing the square to solve the quadratic equation x2 +4x -6= 0, are shown below.

Step 1: x2 +4x= 6

Step 2: x2 +4x+4=6+4

Step 3: (x +2)^2=10

What are the next 3 steps?

we have

step 4

Take square root both sides

$\sqrt{(x+2)^2} =\sqrt{10}$

step 5

Simplify

$x+2=\pm\sqrt{10}$

step 6

Solve for x

subtract 2 both sides

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$x_1=-2+\sqrt{10}$

$x_2=-2-\sqrt{10}$

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3 years ago