Question

​What is the result when​ ​2x​ 2 ​ + 3x - 1 is subtracted from 4x​ 2​+ 7x - 3?

Answer 1

Explanation:

`\tt{4 {x}^(2) + 7x - 3 - (2 {x}^(2) + 3x - 1)}`

While subtracting , the sign of each and every term of second expression changes.

⤏
`\tt{4 {x}^(2) + 7x - 3 - 2 {x}^(2) - 3x + 1}`

Combine like terms. Like terms are those which have the same base. Only coefficients of like terms can be added or subtracted.

⤏
`\tt{4 {x}^(2) - 2 {x}^(2) + 7x - 3x - 3 + 1}`

⤏
`\tt{2 {x}^(2) + 4x - 2}`

`\red{ \boxed{ \boxed{ \tt{Our \: final \: answer : \boxed{ \underline{ \tt{ \: 2 {x}^(2) + 4x - 2}}}}}}}`

Hope I helped ! ツ

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