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28a^5b^3 \div 7a^2b =
(15m^4 - 10m^3 + 5m^2) \div 5m^2 =
Which of the following simplifications is correct?
Assertion (A): \frac{5x + 15}{5} = x + 15 Reason (R): When a polynomial is divided by a monomial, every term of the polynomial is divided by the monomial.
(x + y)^2 = x^2 + y^2 for all values of x and y.
x is a factor of x^2 + 5.
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