Question

What is the answer to this problem?:
3x^2-30x+75/9x^2+45

Answer 1

Answer:

(1): "x2" was replaced by "x^2".

STEP

1

:

25

Simplify ——

1

Equation at the end of step

1

:

(((3•(x2))-30x)-(25•x))-15

STEP

2

:

Equation at the end of step

2

:

((3x2 - 30x) - 25x) - 15

STEP

3

:

Trying to factor by splitting the middle term

3.1 Factoring 3x2-55x-15

The first term is, 3x2 its coefficient is 3 .

The middle term is, -55x its coefficient is -55 .

The last term, "the constant", is -15

Step-1 : Multiply the coefficient of the first term by the constant 3 • -15 = -45

Step-2 : Find two factors of -45 whose sum equals the coefficient of the middle term, which is -55 .

-45 + 1 = -44

-15 + 3 = -12

-9 + 5 = -4

-5 + 9 = 4

-3 + 15 = 12

-1 + 45 = 44

Observation : No two such factors can be found !!