Question

$\huge\underline\mathcal\red{♡Question♡}$

Write some basic formulas used in Maths class 8th

$<marquee>$❤ᴍɪꜱꜱ ᴊᴀɴɴᴀᴛ❤

No spam ​

Answer 1

★${\green{\underline{\underline{\large{\mathtt{QUESTION:-}}}}}}$

Write some basic formulas used in maths.(class - 8)

★${\green{\underline{\underline{\large{\mathtt{ANSWER:-}}}}}}$

Chapter : Algebraic Identity

________________________________

$\sf{1.(a+b)^2=a^2+2ab+b^2}$

$\sf{2.(a-b)^2=a^2-2ab+b^2}$

$\sf{3.(a+b)(a-b)=a^2-b^2}$

$\sf{4.(x+a)(x+b)=x^2+(a+b)x+ab}$

$\sf{5.(x+a)(x-b)=x^2+(a-b)x-ab}$

$\sf{6.(x-a)(x-b)=x^2-(a+b)x+ab}$

$\sf{7.(x+a)(x+b)=x^2+(b-a)x-ab}$

$\sf{8.(a+b)^3=a^3+b^3+3ab(a+b)}$

$\sf{9.(a-b)^3=a^3-b^3-3ab(a-b)}$

$\sf{10.a^3+b^3=(a+b)^3-3ab(a+b)}$

$\sf{11.a^3-b^3=(a-b)^3+3ab(a-b)}$

_____________________________________

Answer 2

$\huge\underline\mathcal\red{♡Answer♡}$

$\huge\mathfrak\pink{Answer\:is}$

$\implies\sf$$\sf{1.(a+b)^2=a^2+2ab+b^2}$

$\sf{2.(a-b)^2=a^2-2ab+b^2}$

$\sf{3.(a+b)(a-b)=a^2-b^2}$

$\sf{4.(x+a)(x+b)=x^2+(a+b)x+ab}$

$\sf{5.(x+a)(x-b)=x^2+(a-b)x-ab}$

$\sf{6.(x-a)(x-b)=x^2-(a+b)x+ab}$

$\sf{7.(x+a)(x+b)=x^2+(b-a)x-ab}$

$\sf{8.(a+b)^3=a^3+b^3+3ab(a+b)}$

$\sf{9.(a-b)^3=a^3-b^3-3ab(a-b)}$

$\sf{10.a^3+b^3=(a+b)^3-3ab(a+b)}$

$\sf{11.a^3-b^3=(a-b)^3+3ab(a-b)}$

____________________________♡♡♡

$<marquee>$❤ᴍɪꜱꜱ ᴊᴀɴɴᴀᴛ❤