Question

if x=5,find the value the value of 9x²-7x​

Answer 1

Solution:

If x=5

$= 9 {x}^{2} - 7x \\ = 9(5 {)}^{2} - 7(5) \\ = 9 \times 25 - 7 \times 5 \\ = 225 - 35 \\ = 190$

Answer 2

Answer:

9(5)^2-7(5)

9(25)-35

225-35

190 is the answer

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