Question

answer the question please
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Answer 1

Answer:

40

X(5+a)²×X(5-a²)=X

40

X(a²+10a+25+25-10a+a²)=X

40

X(2a²+50)=X

40-50

X(2a²)=X

-10/2

X(a²)=X

-√5

X(a) =X

so, a=-√5

I hope it help you.

Answer 2

Step-by-step explanation:

$at \: first$

$x^{(5 + a)^{2} } + x^{(5 - a^{2} )} = x^{40}$

$= > x^{(5 + a)^{2} + (5 - a^{2} ) } = x^{40}$

$= >x^{(25 + 10a + a^{2} + 5 - a^{2} )} = x^{40}$

$= > 30 + 10a = 40$

$= > a = 10 \div 10$

$= > a = 1$

$good \: night$