Math, asked by pallvi1253, 6 months ago

find the value of the following expressions :
please explain step by step

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Answers

Answered by pranavgowrish

1

Answer:

0

Step-by-step explanation:

$p^{2}$ - $q^{2}$ = (p+q) x (p-q)

so

(2+-4) x (2--4) - (2+-4) x (2--4)

= -2 x 6 - -2 x 6

= -12 + 12

= 0

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