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If a * b = a + b + ab, then 3 * 4 - 2 * 3 is equal to?

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Answer:- 1

Explanation:-

Solution:

\begin{aligned} a * b = a + b + a b \\ 3 * 4 \\ = 3 + 4 + 3 \times 4 \\ = 19 \\ 2 * 3 \\ = 2 + 3 + 2 \times 3 \\ = 11 \\ ∴ 3 * 4 - 2 * 3 \\ = 19 - 11 \\ = 8 \end{aligned}

$\eqalign{ & a*b = a + b + ab \cr & 3*4 \cr & = 3 + 4 + 3 \times 4 \cr & = 19 \cr & 2*3 \cr & = 2 + 3 + 2 \times 3 \cr & = 11 \cr & \therefore 3*4 - 2*3{\text{ }} \cr & = 19 - 11 \cr & = 8 \cr}$

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", "dateCreated": "7/24/2019 10:09:12 AM", "author": { "@type": "Person", "name": "Nitin Sir" } }, "suggestedAnswer": { "@type": "Answer", "text": "

Solution:

\begin{aligned} a * b = a + b + a b \\ 3 * 4 \\ = 3 + 4 + 3 \times 4 \\ = 19 \\ 2 * 3 \\ = 2 + 3 + 2 \times 3 \\ = 11 \\ ∴ 3 * 4 - 2 * 3 \\ = 19 - 11 \\ = 8 \end{aligned}

$\eqalign{ & a*b = a + b + ab \cr & 3*4 \cr & = 3 + 4 + 3 \times 4 \cr & = 19 \cr & 2*3 \cr & = 2 + 3 + 2 \times 3 \cr & = 11 \cr & \therefore 3*4 - 2*3{\text{ }} \cr & = 19 - 11 \cr & = 8 \cr}$ ", "dateCreated": "7/24/2019 10:09:12 AM" } }

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