Find the LCM of 6 and 5.

Mathematics

2 answers:

ki77a [65]3 years ago

7 0

Answer:

Step-by-step explanation:

6 = 2 * 3

5 = 5

There are no common factors so the LCM = 2*3*5 = 30

inessss [21]3 years ago

3 0

Answer:

Step-by-step explanation:

just 30. if u want an explanation u can look at the answer before mine because i know there are some students out there who just want the answer and no description :)))

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Answer:

Step-by-step explanation:

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Read 2 more answers

Solve the quadratic equation x2+8x−30=0 by completing the square.

diamong [38]

Answer:

$\bold{x=-4\pm\sqrt{46}}$

Step-by-step explanation:

$(a+b)^2=a^2+2ab+b^2\\\\\\x^2+8x-30=0\\\\\underbrace{x^2+2\cdot x\cdot 4+4^2}-4^2-30=0\\\\{}\qquad(x+4)^2\,-\,16-30=0\\\\{}\qquad\ \ (x+4)^2=46\\\\ {}\qquad\ \ x+4=\pm\sqrt{46}\\\\ {}\qquad\ \ x=-4\pm\sqrt{46}$