Question

Hi ♥

ax + by = 5
ax² + by² = 10
ax³ + by³ = 50
${ax}^{4} + {by}^{4} = 130$
Find the value of :
13 ( x + y - xy) - 120 ( a + b)

Thanks in advance xD
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Answer 1

$\huge{\underline{\underline{\mathfrak{\blue{\sf{Answer-}}}}}}$

13 ( x + y - xy ) - 120 ( a + b ) = 1,092

$\huge{\underline{\underline{\mathfrak{\blue{\sf{Explanation-}}}}}}$

$\begin{lgathered}\bold{Given\:equations} \begin{cases}\sf{ax+by=5} \\ \sf{ax^2+by^2=10}\\ \sf{ax^3+by^3=50}\\ \sf{ax^4+by^4=130}\end{cases}\end{lgathered}$

$\orange{\boxed{\pink{\underline{\red{\mathfrak{To\:find-}}}}}}$

• Value of $\pink{\sf{13(x+y-xy)-120(a+b)}}$

$\orange{\boxed{\pink{\underline{\red{\mathfrak{Explanation-}}}}}}$

Refer to the attachment.

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#BAL

Answer 2

Step-by-step explanation:

hope it helps you good afternoon.......