Question

Solve: 12x2 +5X-4 - 122x+6
x=2
x=-5
x=2, x = -5
no solution

Answer 1

When x is 2 , the solution gives -224 and when x is -5, the solution gives 637

How to simply the expression

Given the expression;

2x2 +5X-4 - 122x+6

When x = 2

We have

= 2(2)^2 + 5(2) -4 - 122(2) + 6

= 2 × 4 + 10 -4 - 244 + 6

= 8 + 10 -4 - 244 + 6

= -224

When x = -5

= 2(-5)^2 + 5(-5) -4 - 122(-5) + 6

= 2(25) -25 -4 + 610 + 6

= 50 -25 - 4 + 610 + 6

= 637

Thus, when x is 2 , the solution gives -224 and when x is -5, the solution gives 637

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