Question

Simplify x(2x - 1) + 5 and find its value at x = -2​

Answer 1

Step-by-step explanation:

Given equation is:-

x(2x-1)+5

At x= -2,

x(2x-1)= -2[2(-2)-1]

= -2(-4-1)

= -2(-5)

=10

Answer 2

-2(-4+1)+5

-2(-5)+5

10+5

15

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