Question

factorise (2a-7b)²-(2a+7b)²​

Answer 1

Answer:

here your answer -56ab

Step-by-step explanation:

=(2a-7b-2a-7b)(2a-7b+2a+7b)

=-14b×4a

=-56ab

Answer 2

☯ $\mathfrak{Answer }$ ☯

• $\textsf{Final answer -56ab }$

$\mathfrak{⚛\ Step\;-by\;-\;step\; explanation\;⚛: }$

• $\textsf{(2a-7b)²-(2a+7b)² }$

• $\textsf{=(2a-7b-2a-7b)(2a-7b+2a+7b) }$

• $\textsf{= -14b×4a }$

• $\textsf{= -56ab ✔ }$

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$\tt{✝\;dentity \;used \;here \; ✝}$

• $\mathbb{(a²+b²)\; = \;(a²-b²) }$