$x^2+13x=-42\ \ \ |+42\\\\x^2+13x+42=0\\\\x^2+6x+7x+42=0\\\\x(x+6)+7(x+6)=0\\\\(x+6)(x+7)=0\iff x+6=0\ \vee\ x+7=0\\\\x=-6\ \vee\ x=-7$

Anaswer: <span>a. x = -6 or x = -7</span>

8 0

3 years ago

Luca has 15

pav-90 [236]

Answer:10 question 1/2

Step-by-step explanation:

6 0

2 years ago

Write in exponential notation

r-ruslan [8.4K]

Answer:

12^5

Step-by-step explanation:

12^5 means 12*12*12*12*12 (5 twelves)

6 0

2 years ago

Which inequality represents the following situation: 3/5 times 5 less than a number is no more than 27?

MariettaO [177]

This kid is ugly very ugly like wow

6 0

3 years ago