2 answers:
Answer:
-6x^2+45x-21
Step-by-step explanation:
So use the FOIL method
First- -6x*x
Outter- -6x*-7
Inner- 3*x
last- 3*-7
Answer:
-5x-4
Step-by-step explanation:
You first have to combine like terms. (-6x + x) + (+3 -7) = -5x-4
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4.68 tons since you would multiply 2.1+0.5=2.6×1.8=4.68 tons
Your answer would be 8 when you do all the calculations
if two triangles are similar then they are congruent
