Question

if a=2, b=-2 then find the value of a² -b²​

Answer 1

Answer:

0

Step-by-step explanation:

a=2

b=2

a2-b2=a2-2ab+b2

a2-b2=4-8+4

a -b2=0

Answer 2

hey it's your ans-

$a = 2$

$b = -2$

$a^2 - b^2 = a^2 - 2ab + b^2$

$By \: identity$

$= a^2 - 2ab + b^2$

$= 2^2 - 2 × 2 × (-2) + (-2)^2$

$= 4 + 8 + 4$

$= 16$

$so \: the \: value \: of\: a² -b² \: = 16$

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