Subtract these polynomials. (3x^2+6x+7) - (6x^2-5x-7)

Mathematics

1 answer:

mario62 [17]3 years ago

7 0

Answer:

3x²-11x-14=0

Step-by-step explanation:

Given equation is : (3x²+6x+7)-(6x²-5x-7)

Putting the equation equals to zero making it in the form of polynomial equation (3x²+6x+7)-(6x²-5x-7)=0

Opening the bracket of the equation, the negative sign outside the bracket changes the sign of the values after opening the bracket.

3x²+6x+7-6x²+5x+7=0

Solving this by subtracting the values of same type i.e subtracting the component of x having the same power.

3x²-6x²+6x+5x+7+7=0

-3x²+11x+14=0 OR 3x²-11x-14=0

So, on subtracting the above equation the quadratic equation is obtained 3x²-11x-14=0

You might be interested in

Reena bought a mobile phone for 16,240 that included a GST of 12%. Find the price of the mobile phone before the GST was added.

NNADVOKAT [17]

Answer: 14500

Step-by-step explanation:

Let the price of the mobile phone before the GST was added be represented by x.

Therefore,

x + (12% × x) = 16240

x + 0.12x = 16240

1.12x = 16240

x = 16240/1.12

x = 14500

The price of the mobile phone before the GST was added was 14500

4 0

3 years ago

Hope someone can solve it quick.

Dmitry [639]

Answer:

Step-by-step explanation:Weathering is the breaking down or dissolving of rocks and minerals on Earths surface. ... Weathering describes the breaking down or dissolving of rocks and minerals on the surface of the Earth. Water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering.

4 0

2 years ago

What is the equation of a line that is perpendicular to the line that goes through the points (0, -3) and (-3, 12)?

Schach [20]

Hello,

Slope of the line passing through the points:
m=(12+3)(-3-0)=-5
Slope of the perpendicular: 1/5

==> Answer D.

3 0

3 years ago

(-16) - (+12) + (-୨)

Nesterboy [21]

Answer:

-37

Step-by-step explanation: