Question

which of these is not a part of repot​

Answer 1

Answer:

See steps

Solving quadratic equations using the formula

Quadratic equations

Step by Step Solution

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Step by step solution :

STEP

1

:

Equation at the end of step 1

((0 - 3x2) + 9x) - 6 = 0

STEP

2

:

STEP

3

:

Pulling out like terms

3.1 Pull out like factors :

-3x2 + 9x - 6 = -3 • (x2 - 3x + 2)

Trying to factor by splitting the middle term

3.2 Factoring x2 - 3x + 2

The first term is, x2 its coefficient is 1 .

The middle term is, -3x its coefficient is -3 .

The last term, "the constant", is +2

Step-1 : Multiply the coefficient of the first term by the constant 1 • 2 = 2

Step-2 : Find two factors of 2 whose sum equals the coefficient of the middle term, which is -3 .

-2 + -1 = -3 That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -2 and -1

x2 - 2x - 1x - 2

Step-4 : Add up the first 2 terms, pulling out like factors :

x • (x-2)

Add up the last 2 terms, pulling out common factors :

1 • (x-2)

Step-5 : Add up the four terms of step 4 :

(x-1) • (x-2)

Which is the desired factorization

Equation at the end of step

3

:

-3 • (x - 1) • (x - 2) = 0

STEP

4

:

Theory - Roots of a product