The quadratic formula is x=(-b+-sqrt(b^2-4(a)(c)))/2a
Using the quadratic formula, we get:
x=(-(-8)+-sqrt((-8)^2-4(15)(1)))/2(1)
x=(8+-sqrt(64-60))/2
x=(8+-sqrt(4))/2
x=(8+-2)/2
x=10/2 and x=6/2
x=5 and x=3
We could do it way faster by completing the square:
x^2-8x+15=0
(x-5)(x-3)=0
x=5 and x=3
Hope both methods make sense! BTW, the +- thing means add or subtract
Answer: Inverse Operation
Step-by-step explanation:
612 is the answer to the question you have asked brainly.com on 11/28/2016 2 minutes ago at 2:18 P.m.
Multiply 40 and 6 and then add the remainder (16):
240+16 = 256
check by dividing "the number," 256, by 40. Is the partial quotient 6? Is there a remainder of 16? YES and YES.
Answer:
GCF = 2 :)
Step-by-step explanation:
The greatest common factor is the biggest number that each number is divisible by.
There is no number greater than 2 that 14, 4 and 42 are all divisible by! :)
