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Find the products: ((1/3) x2 – 9) ((1/3) x2 – 9) |
Answer» Given that ((1/3) x2 – 9) ((1/3) x2 – 9) But we can write the given expression as ((1/3) x2 – 9) ((1/3) x2 – 9)= ((1/3) x2 – 9)) 2 But we have (a – b)2=a2-2ab+b2 On applying above identity in the given expression we get, ((1/3) x2 – 9))2= ((1/3) x)2-2 ((1/3) x) (9) + (9)2 ((1/3) x2 – 9))2= ((1/9) x4)- 6x +81 |
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