Question

(v) (3 - 2x) (3 + 2x) using identity​

Answer 1

Answer:

9 - 4x²

Step-by-step explanation:

Using the identity (a - b) (a + b) = a² - b²

So,

(3 - 2x) (3 + 2x) = 9 - 4x²

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Answer 2

Question:

$(3 - 2x) (3 + 2x) \: using \: identity:$

Answer:

$\underline{ \: \underline{ \: \sf \pink{\bold{9 - {4x}^{2} }} \: } \: } \: is \: the \: answer.$

Step-by-step explanation:

$\implies (3 - 2x) (3 + 2x)$

★ The above form is called as question form.

This also can be written as,

$\implies (2x - 3)(2x + 3)$

It is of the form,

$\boxed{ {a}^{2} - {b}^{2} = (a - b)(a + b)}$

$\implies \big[ {(2x)}^{2} - {(3)}^{2} \big]$

$\implies {4x}^{2} - 9$

Now changing to first form, ( question form )

$\implies \boxed{9 - {4x}^{2} }$

Identity used:

$\bigstar {a}^{2} - {b}^{2} = (a - b)(a + b)$