Question

Astha multiplied two number and got -4 as the product. She subtract the second number from the first number and got the answer 5. Find the number.

Answer 1

suppose
Aastha multiply
1×-4=-4

she sub. -4 from 1
=-4-1
=5

Answer 2

Answer:

Step-by-step explanation:

let two numbers be x and y

According to question

xy =   -4                  .......(equation 1)

and,

x-y  =  5

⇒x  = 5 + y             ......(equation 2)

Put x=5+y in equation 1

(5+y) (y)  =  -4

y²+5y+4=0

Splitting middle term

y²+4y+y+4=0

y(y+4) + 1(y+4) =0

(y+4) (y+1) =0

Either y = -4    or y = -1

Put y = -4 in eq. 2 then x=1

or Put y = -1 in eq. 2  then   x=4