Question

Expand (2x+3)^2
step by step please​

Answer 1

Answer:

→ (2x + 3)²

→ (2x + 3) (2x + 3)

→ 2x (2x + 3) +3 (2x + 3)

→ 4x² + 6x + 3 (2x + 3)

→ 4x² + 6x + 6x + 9

→ 4x² + 12x + 9

Answer 2

Given:-(2x+3)² expand

solution:-

(2x+3)²

=(2x)²+2×2x×3+(3)²

=4x²+12x+9

here we use (a+b)² this identities

expanded form of (a+b)²=a²+2×a×b+(b)²

=a²+2ab+b²

☬Identities☬

In mathematics, an identity is an equality relating one mathematical expression A to another mathematical expression B, such that A and B (which might contain some variables) produce the same value for all values of the variables within a certain range of validity.

The algebraic identities for class 8 consist of three major identities, which consist of algebraic expressions and is true for identity definition. The algebraic formulas for class 8 are also derived using these identities. These identities and formulas will be used to solve algebraic equations.