use suitable identity to find each of the following products:(3x-7) (3x-7)
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(3x-7)(3x-7)
=(3x-7)^2
=(3x)^2 - 2×3x×7 + (7)^2
= 9x^2 - 42x + 14
=(3x-7)^2
=(3x)^2 - 2×3x×7 + (7)^2
= 9x^2 - 42x + 14
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