Question

if matrix[a+b 2 5 ab]=[6 2 5 8] find a and b​

Answer 1

Answer:

a and b are 4 and 2 respectively

Step-by-step explanation:

matrix[a+b 2 5 ab]=[6 2 5 8]

a+b = 6.............(1)

and ab =8.............(2)

by solving 1 and 2,

$a+\frac{8}{a} =6\\a^2+8=6a\\a^2-6a+8=0\\a^2-4a-2a+8=0\\a(a-4) -2(a-4)=0\\(a-4)(a-2)=0\\a= 4 or a =2$

if a=4, b= 2

or

a=4, b= 2

Answer 2

Answer:

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