Question

answer for This plz ​

Answer 1

Answer:

Step-by-step explanation:

1) 8xy(8+y)

2)(p-3q)(p+3q)

3)(m-1/(2m))(m+1/(2m))        ( since a² - b² = (a-b)(a+b))

Answer 2

Step-by-step explanation:

$(1)64xy + 8xy {}^{2} = 8xy(8 + y) \\ (2)p {}^{2} - 9 {q}^{2} \\ {p}^{2} = 9 {q}^{2} \\ p = \sqrt{9 {q}^{2} } \\ p = 3q$

$\tt{ \implies{m}^{2} - \frac{1}{4 {m}^{2} } = 0}$

$\tt{ \implies \: {4m}^{4} - 1 = 0 }$

$\tt{ \implies \: 4 {m}^{4} = 1 }$

$\tt{ \implies \: {m}^{4} = \frac{1}{4} }$

$\huge \tt{ \implies \: m = \pm \sqrt[4]{ \frac{1}{4} } }$

$\huge\tt{ \implies \: m = \pm \frac{1}{ \sqrt[4]{4} } }$

$\huge \tt{ \implies \: m = \pm \frac{1}{ \sqrt[4]{ {2}^{2} } } }$

$\huge \tt{ \implies \: m = \pm \frac{1}{ {2}^{ \frac{1}{2} } } }$

$\huge\tt{\implies m=\pm \frac{1}{\sqrt{2}}}$

hope it help you.

thanks