- A, B, and C, are matrices: A(B+C)=AB+CA Is it always true, sometimes true, or false?

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(3x^2 - 10x +3) ÷ (x-3)? Are the scientific conversations in the Big Bang Theory scientifically accurate? The suitable way to obtain calcium nitrate crystals from the resultant mixture is by? A sample of hydrogen chloride gas occupies 0.800 L at STP. What is the pressure in atm if the volume is 0.150 L at 30 ∘C? Is a camera lens with a 40x zoom equivalent to the power of a 40x telescope?