Question

Which expression is equivalent to 10x2y + 25x2?

Answer 1

$10 x^{2} y +25 x^{2} = 5 x^{2} ( \frac{10 x^{2} y +25 x^{2} }{5 x^{2} }) = 5 x^{2} ( \frac{10 x^{2} y}{5 x^{2} } + \frac{25 x^{2} }{5 x^{2} } ) = 5 x^{2} ( \frac{2y}{1} + \frac{5}{1} )$

Answer A   5x² * ( 2y + 5)

Answer 2

If you expand the question you get 20y + 50, so expanding all the solutions the one that is equivalent is 5 x 2(2y + 5)