Answer:
30 mins i think its jus simple maths unless theres a twist
First lets distribute the 5x
5x^2 + 30x = -50
Lets divide every term by 5
x^2 + 6x = -10
To complete the square we have to half the b value, which in this case is 6. Then square it.
Half of 6 is 3, 3 squared is 9
Add that to both sides of the equation
x^2 + 6x + 9 = -1
Find the binomial squared
(x+3)^2 (If you're wondering how i got that please comment)
(x+3)^2 = -1
Take the square root of the equation of both sides
(x+3) = +/- i
x = -3 +/- i
x = -3 - i
and
x = -3 + i
Answer:
it means to find the undefined number
we should solve for the variable to find the answer to the equation
we solve for the variable by using the elimination method
Step-by-step explanation:
Answer:
i may not be correct idk but i think its a because it would have to be in between 2.5 and 4.3
Step-by-step explanation:
Answer:
98
Step-by-step explanation:
56 x 1 3/4
56 x 1.75 = 98
