Question

(2a + 3) (2a -3) direct method to evaluate ​

Answer 1

Step-by-step explanation:

2a(2a-3)+3(2a-3)

4a²-6a+6a-9

4a²-9

Answer 2

$\huge \mid \mid{ \bold{ {\underline{ \underline \red{AnSwer}}\mid \mid}}}$

we have,

• (2a + 3) (2a - 3)

solve this by using identity:

• (a + b) (a - b) = a² - b²

➪ (2a + 3) (2a - 3) = (2a)² - (3)²

➪ (2a + 3) (2a - 3) = 4a² - 9

so, right answer is 4a² - 9