Math Hack Tricks

Post by today's evidence of the algebra's evidence. Through this, tuners can easily understand how these formulas come. I will continuously post these sources with Inshallah. So that you do not have to memorize your formula. I'll just give the technique. You can easily beat this technique.

Before posting I am excited by my teachers for this educational post. For them I can write these techniques for you.

In order to learn mathematics, you have to take care of three things:

Why is it
How are you
Why is it?

If you have these 3 questions you can learn mathematics. Let's go about today.
Class formula

Sun-1 (a + b) 2 = a2 + 2ab + b2

Proof- (a + b) (a + b) = a.a + ab + b.b + ab = a2 + 2ab + b2

Logical evidence - you think that class 10 will ... 102

Its value will be 100.

If you add or subtract 10 with any number, you can make the following:
(9 + 1) is = 10 or (5 + 5) = 10. Hold 9 = a, 1 = b

Apply that formula (a + b) 2 = (9 + 1) 2 = 92 + 2 × 9 × 1 + 12 = 81 + 18 + 1 = 100

Again (a + b) 2 = (a-b) 2 + 4ab = a2-2ab + b2 + 4ab = a2 + 2ab + b2

Then the 1st argument is proved.

Thus: the formula-2 (a + (- b) 2 = a2 + 2a (-b) + (- b) 2 = a2-2ab + b2
If you add or subtract 10 with any number, you can make the following:
(11-1) = 10 is or (12 - 2) = 10. Hold 11 = a, 1 = b
(a-b) 2 = (11-1) 2 = 112-× × 11 × 1 + 12 = 121 -22 + 1 = 99 + 1 = 100

Again (a-b) 2 = (a + b) 2-4ab = a2 + 2ab + b2 -4ab = a2-2ab + b2

The second source proved.

This is up until today. If you are interested in learning more about it then please comment. Then you will present some more techniques in front of you.