When 5 is subtracted from the square of a number ,the results is 4 times the number. find the negative solution

x=-1

Step-by-step explanation:

To find this

We assume the number is x

The square of the number=x^2

Therefore when 5 is subtracted from the number we get

x^2-5=4× the number x

x^2-5=4x

X^2-4x-5

To factorise

x^2-5x+x-5

(x^2-5x)+(x-5)

x(x-5)+1(x-5)=0

(x+1)(x-5)=0

To find the negative solution

(x+1)=0or (x-5)=0

x=-1

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step-by-step explanation:

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$3,200 x 7.25% = $3,200 x .0725 = $232 interest monthly

$232 monthly x 12 annual = $2, 784

step-by-step explanation: