Let's solve this problem step-by-step.
STEP-BY-STEP SOLUTION:
We will be using simultaneous equations to solve this problem.
Let's first establish the two equations we will be using.
Let integer no. 1 = x
Let integer no. 2 = y
Equation No. 1 -
x + y = - 7
Equation No. 2 -
xy = - 18
To begin with, we will make ( x ) the subject in the first equation.
Equation No. 1 -
x + y = - 7
x = - 7 - y
Next we will substitute the value of ( x ) from the first equation into the second equation to solve for ( y ).
Equation No. 2 -
xy = - 18
y ( - 7 - y ) = - 18
- 7y - y^2 = - 18
- y^2 - 7y + 18 = 0
- [ y^2 + 7y - 18 ] = 0
- [ y^2 + 9y - 2y - 18 ] = 0
- [ y ( y + 9 ) - 2 ( y + 9 ) ] = 0
- ( y + 9 ) ( y - 2 ) = 0
y + 9 = 0
y = - 9
OR
y - 2 = 0
y = 2
Then we will substitute the value of ( y ) from the second equation into the first equation to solve for ( x ).
Equation No. 1 -
x = - 7 - y
x = - 7 - ( - 9 )
x = - 7 + 9
x = 2
OR
x = - 7 - y
x = - 7 - ( 2 )
x = - 9
FINAL ANSWER:
Therefore, the answer is:
x = 2
y = - 9
OR
x = - 9
y = 2
The two integers are 2 and - 9 or - 9 and 2.
Please mark as brainliest if you found this helpful! :)
Thank you and have a lovely day! <3
Answer:
Cubes always involve multiplying a number by itself three times, so if the number is negative the cube will always be negative (and if the cube is negative, its cube root has to be negative too).
Step-by-step explanation:
Answer:
adora stop stalking me bih !
Step-by-step explanation:
i acc need to go now
Answer:
the price before taxes was $18,229.13
Step-by-step explanation: