Using trial and error
x^4+5x^2-36 factors to (x-2)(x+2)(x^2+9)
2x^2+9x-5 factors to (x+5)(2x-1)
so
(x-2)(x+2)(x^2+9)(x+5)(2x-1)=0
set each to zero
x-2=0
x=2
x+2=0
x=-2
x^2+9=0
x^2=-9
x=3√-1
x=3i
x+5=0
x=-5
2x-1=0
2x=1
x=1/2=0.5
roots are
x=-5-2,0.5,2, and the imaginary root 3i
The answer is hundred thousands
Answer: (d)-
Step-by-step explanation:
Suppose 'b' is the number of bagels
It is to be divided into 15 bags
So, we use the divide operator i.e.
So A lady walks into the bank I work at and she comes up to the counter and asks me to check her balance so I check her balance.........I push her over ;)
answer is 7.
since the unkown number is multiplied by itself what we need to do to get out answer is to work backwards. Thats where we cube root 343 to get 7.(∛343 =7)