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2a+5,4a²+2a-5 addition and subtraction of polynomials.Show solution​

Sagot :

Addition:

[tex](2a + 5) + (4 {a}^{2} + 2a - 5) \\ 4 {a}^{2} + 4a \\ or \\ 4a(a + 1)[/tex]

Subtraction:

[tex](2a + 5) - (4 {a}^{2} + 2a - 5) \\ 2a + 5 - 4 {a}^{2} - 2a + 5 \\ - 4 {a}^{2} + 10 \\ or \\ 2( - 2 {a}^{2} + 5)[/tex]

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