Question

Simplify:
${( \frac{x}{2}) }^{2} + ( {\frac{5}{4}y)}^{2} - 2 (\frac{x}{2} )( \frac{5}{4} y)$
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Answer 1

that's great dear

how are you

Answer 2

gravity, also called gravitation, in mechanics, the universal force of attraction acting between all matter. ... On Earth all bodies have a weight, or downward force of gravity, proportional to their mass, which Earth's mass exerts on them. Gravity is measured by the acceleration that it gives to freely falling objects.