Question

-900 + 10n + 8n² = 0 ​

Answer 1

Answer:

8n²+10n-1272=0 , divide by 2 , 4n² +5n-636=0, 4n²-48n+53n-636=0, 4n(n-12)+53(n-12 )=0, (n-12)(4n+53)=0, n-12=0 or 4n+53=0,

Step-by-step explanation:

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Answer 2

Answer:

2(x-10)(4x+45)

Step-by-step explanation:

rearranging the question as 8x²+10x-900

we factorise the above quadratic eqn as shown in the attachment,

the resulting factors are

2(x-10)(4x+45)