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Mathematics, 18.02.2021 16:30 sugar1014
Shota tried to subtract two polynomials. His work is shown below: \begin{aligned} &\phantom{=}(12a^2+3ab+4b^2)-(7 a^2-5ab+b^2) &=12a^2+3ab+4b^2-7a^2+5ab-b^2&a mp;\text{Step }1 &=(12+3)a^3+(3+4)b^3+(-7+5)a^3+ (5-1)b^3&\text{Step }2 &=15a^3+7b^3-2a^3+4b^3&\tex t{Step }3 \end{aligned} β =(12a 2 +3ab+4b 2 )β(7a 2 β5ab+b 2 ) =12a 2 +3ab+4b 2 β7a 2 +5abβb 2 =(12+3)a 3 +(3+4)b 3 +(β7+5)a 3 +(5β1)b 3 =15a 3 +7b 3 β2a 3 +4b 3 β Step 1 Step 2 Step 3 β
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Shota tried to subtract two polynomials. His work is shown below: \begin{aligned} &\phantom{=}(1...
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