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2.)Which is a solution to the equation? (x −2)(x + 5) = 18 x = −10 x = −7 x = −4 x = −2

2.)Which is a solution to the equation? (x −2)(x + 5) = 18 x = −10 x = −7 x = −4 x = −2
asked 134k views
1 vote
2.)Which is a solution to the equation?

(x −2)(x + 5) = 18
x = −10

x = −7

x = −4

x = −2

asked
User John Blackbourn
by
8.1k points

2 Answers

1 vote

Answer:

x=-7

Step-by-step explanation: it's B on edg

answered
User Manasouza
by
8.5k points
4 votes

(x-2)(x+5) = 18\\ x^(2)-2x+5x-10=18\\ x^(2)+3x-28=0\\ delta=3^(2)-4*1*(-28)=9+112=121\\ x_(1/2)= (-3+11)/(2)/ (-3-11)/(2)=4/-7

So the answer is -7=x
answered
User Alinium
by
8.0k points
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