Although x ² and x both have the variable x, you can’t add them together. So x + x + x + x is 4x and we just leave x ² the same. So the simplified expression is x ² + 4x. I hope this helped!!
<span>One pair of metric unit of length would be meters and kilometers. 1 km is equal to 1000 meters. Metric system is the official/standard in measuring length, mass, area, volume, speed, etc. and it is the agreed system of measurement.</span>
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7•4 =28, -5•0 =0... 28+0=28
Lauren needs to sell 6 more tickets to reach her goal. 30- (12x2) 12x2=24 30-24=6
