Question: If (a + b) = a + 2ab+ b, then the middle term of (7x + 4)= ? 56x 28x O 11x 56x2

If (a + b) = a + 2ab+ b, then the middle

If (a + b) = a + 2ab+ b, then the middle term of (7x + 4)= ? 56x 28x O 11x 56x2

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