( s²t + tq² )² - ( 2stq )² Solve this with suitable identity.....
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Step-by-step explanation:
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see down for you answer
Step-by-step explanation:
The given expression is
(s2t + tq2)2 – (2stq)2
= (s2t)2 + 2(s2t)(tq2) + 2(s2t)(tq2)-4s2t2q2
= s4t2 + 2s2t2q2 + 2s2t2q2-4s2t2q2
= s4t2
Therefore ,(s2t + tq2)2 – (2stq)2 = s4t2
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