Question

3. Find ( x + y)
(x - y), where x =3/4 – and y=-7/4​

Answer 1

Answer:

$(x + y)( x - y) \\ \\ ( \frac{3}{4} + \frac{ - 7}{4} )( \frac{3}{4} - \frac{( - 7)}{4} \\ \\ ( \frac{3}{4} - \frac{7}{4} )( \frac{3}{4} + \frac{7}{4} ) \\ \\ ( \frac{3 - 7}{4} )( \frac{3 + 7}{4} ) \\ \\ ( \frac{ - 5}{4} )( \frac{10}{4}) \\ \\ \frac{ - 5}{4} \times \frac{10}{4} \\ \\ \frac{ - 5}{4} \times \frac{5}{2} \\ \\ \frac{ - 25}{16}$

Answer 2

thanks you for your answer