Question

find the value of a²+5a-4 for a=2 and 1​

Answer 1

$(a) = 2 \\ \\ = > a {}^{2} + 5a - 4 \\ \\ = {2}^{2} + 5 \times 2 - 4 \\ \\ = 4 + 10 - 4 \\ \\ = 14 - 4 \\ \\ = 10$

$(a) = 1 \\ \\ = > {a}^{2} + 5a - 4 \\ \\ = {1}^{2} + 5 \times 1 - 4 \\ \\ = 1 + 5 - 4 \\ \\ = 6 - 4 \\ \\ = 2$

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Answer 2

Answer:

=10,=2 it is the right answer

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