Since there are no number that multiply to 155 and add to 6 you must now use the Quadratic Formula.
x=(-b(+/-)√

-4ac)
2a
The answer would be D....
Answer:
4
Step-by-step explanation:
-6 + x = -2
add 6 to each side
-6 +6 +x = -2 +6
x = 4
Step-by-step explanation:
No, the product of two (or more) prime numbers cannot result in another prime number. By definition, a prime number is a number that is divisible by 1 or itself - the act of multiplying two or more primes together will always yield a number divisible by 1, itself and the prime numbers multiplied together to achieve it.
Answer:
20cm
Step-by-step explanation:
pythagorean theorem
15^2 + b^2 = 25^2
225 + b^2 = 625
b^2 = 400
b = 20