Identities / Ex - 12 (a) / q no - 3 - 6 / ICSE / Selina / Class 8th / Maths

In this video, step-by-step solutions for Questions 3 to 6 of Exercise 12 (a) from the ICSE Selina Class 8th Mathematics chapter on Identities are explained1. The session focuses on using algebraic identities to simplify calculations and avoid lengthy, complicated multiplications. Video Breakdown: Question 3: Solves algebraic expressions involving the product of sums and differences (e.g., $(2a+3)(2a-3)$) using the identity $(a+b)(a-b) = a^2 - b^2$13. Question 4: Demonstrates how to systematically multiply three polynomials (e.g., $(a+b)(a-b)(a^2+b^2)$) by applying the identity sequentially45. Question 5: Illustrates how to solve numerical multiplication problems (such as $21 \times 19$ or $9.8 \times 10.2$) quickly by rewriting them in the form of $(a+b)(a-b)$ and applying the $a^2 - b^2$ formula67. Question 6: Expands on evaluating advanced algebraic expressions containing fractions, decimals, and multiple variables using the difference of squares identity8more_horiz. #selina #class8th #maths #class8maths #SimpleMathsByParul #selinasolutions #selinamath #icsemaths #icse #icseclass8math #tipsandtricks #mathstips #mathstricks #simpleinterest #simpleinterestmaths #simpleinteresttrick selina maths 8, selina maths class 8, icse class 8 math, identities maths, identities maths class 8, algebraic identities maths project, class 8 square identities maths, algebraic identities maths, identity maths algebra, identities add maths, trigonometric identities additional maths, identities & its derivation, jacobi identity and its derivation, identities math intro, exercise 12a, exercise 12a class 8, exercise 12a rs aggarwal, exercise 12a rs aggarwal class 8, exercise 12 class 8, exercise 12a class 8th, rs aggarwal class 8th exercise 12a, exercise 12a class 8 rs aggarwal, exercise 12a class 8 math, exercise 12a class 8, youtube, q no - 3 - 6,