What does (3 + deltax)squared equal? Please show workings

Question

anonymous · Answer

3+ deltax simply means theres  a slight increase in the value of 3 but its unknown.

anonymous · Answer

when its squared u will get 9 + delta square x + 6deltax

anonymous · Answer

But why isn't it just 9 + deltaxsquared?

anonymous · Answer

because of property in algebra (a+b)^2= a^2+b^2+ 2ab

anonymous · Answer

have you learNT this formula ?

anonymous · Answer

no. doesn it have a name that I can google for tutorials?

anonymous · Answer

dear, in what class are you in?

anonymous · Answer

I am an adult who has forgotten so much and is trying to learn by self. I don't know the name of stuff.

anonymous · Answer

Laws of Exponents

    (am)(an) = am+n
    (ab)m = ambm
    (am)n = amn
    Fractional Exponents
    a0 = 1
    (am)/(an) = am-n
    a-m= 1/(am)

Quadratic Formula

In an equation like ax2 + bx + c = 0

You can solve for x using the Quadratic Formula:

Quadratic Formulas
Binomial Theorem

    (a + b)1 = a + b
    (a + b)2 = a2 + 2ab + b2
    (a + b)3 = a3 + 3a2b + 3ab2 + b3
    (a + b)4 = a4 + 4a3b + 6a2b2 + 4ab3 + b4 ...and so on...

Difference of Squares

    a2 - b2 = (a - b)(a + b)

Rules of Zero

    0/x = 0 where x is not equal to 0.
    a0 = 1
    0a = 0
    a*0 = 0
    a/0 is undefined (you can't do it)

anonymous · Answer

WOW thanks!

anonymous · Answer

cut that// i will give you the link.. http://www.freemathhelp.com/algebra-formulas.html

anonymous · Answer

Thankyou so much!!!!