Question

a+a+b+ answer should be 0 what is the process

Answer 1

Answer:

Quadratic Formula

Step-by-step explanation:

The quadratic formula helps you solve quadratic equations, and is probably one of the top five formulas in math.

If you have a general quadratic equation like this:

ax^2+bx+c=0ax  

2

+bx+c=0a, x, squared, plus, b, x, plus, c, equals, 0

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Answer 2

Answer:

To put it simply, we should use the “rainbow expansion method”

(a-b) x (a-b)

Step 1: a x a = a2

Step 2: a x (-b) = -ab

Step 3: -b x a = -ab

Step 4: -b x -b = b2

Thus (a-b) x (a-b) = a2 -ab -ab + b2 = a2 -2ab + b2

Note that I bolded a and b in the first bracket to clearly mark my steps of expansion, but one should note that this clearly doesn’t matter.

Afterwards you should try it out with (a+b)(a-b) and (a+b)(a+b)/(a+b)2 too!

The results are always as follow: (FORMULA MEMORISATION METHOD)

(a+b) x (a+b) = (a+b)2 = a2 + 2ab + b2

(a+b) x (a-b) = a2 – b2

I hope it was helpful for you