Answer:
x = -1
Step-by-step explanation:
2x + 5x = -7
7x = -7
x = -1
So you want to start to factor so you get (x²+2)(x²-7) = 0. Now set each () to 0, so you get (x²+2) = 0 and (x²-7)=0. The first ends with +√2i and -√2i, the second ends with +√7 and -√7
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<em>Hey, love!</em>
<em>This questions seems to require some type of visual or video. It might help if you go check out what your teacher gave you with this and then come back!</em>
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Answer:
-4x-3y+3z
Step-by-step explanation:
(-5x-3y)-(-x-3z)
-5x+x-3y+3z
-4x-3y+3z
