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area of bigger rectangle = (3x+1)(x) = 3x²+x
area of smaller rectangle = 7×2 = 14cm²
area remaining = 3x²+x-14
3x²-6x+7x-14 = 3x(x-2)+7(x-2) = (x-2)(3x+7)
x = 2,-7/3
please mark it as the brainliest answer
area of smaller rectangle = 7×2 = 14cm²
area remaining = 3x²+x-14
3x²-6x+7x-14 = 3x(x-2)+7(x-2) = (x-2)(3x+7)
x = 2,-7/3
please mark it as the brainliest answer
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