Question

solve this
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Answer 1

Question:

lim(h tends to 0) ( 2(-3 + h)^2 - 18) / h

Answer:

- 12

Step-by-step explanation:

$\sf {lim_{h\rightarrow 0} \frac{2(-3+h)^2 - 18}{h} }\\\\ \sf{ lim_{h\rightarrow 0} \frac{2(9+h^2 - 6h) - 18}{h}} \\\\ \sf{lim_{h\rightarrow 0} \frac{18+2h^2 - 12h - 18}{h}} \\\\ \sf{lim_{h\rightarrow 0} \frac{2h^2 - 12h }{h}} \\\\ \sf{lim_{h\rightarrow 0} \frac{h(2h- 12)}{h}} \\\\ \sf{lim_{h\rightarrow 0} (2h- 12)} \\ \\ 0 - 12 \\ \\ - 12$

Answer 2

Answer:

Based on composition, both syngas and water gas contain the same components: Hydrogen and carbon monoxide, with or without some amount of carbon dioxide

but by editing you can delete that