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Evaluate (x+3)^2 using appropriate identity |
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Answer» Step-by-step EXPLANATION: USING the identity is (a−b) 2 =a 2 +b 2 −2ab. Given: (y−3) 2 we apply the above identity by taking a=y and b=−3 We GET, (y−3) 2 =(y) 2 +(3) 2 −(2×y×3)=y 2 +9−6y Hence, (y−3) 2 =y 2 −6y+9. |
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