if x =-1 find the value of 2x²- 5 x+11x+2x+3
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if x =-1 find the value of 2x²- 5 x+11x+2x+3
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Step-by-step explanation:
given
[tex]x = - 1[/tex]
[tex]2 {x}^{2} - 5x + 11x + 2x + 3 \\ \\ 2{x}^{2} + 8x + 3 \\ \\ 2 ({ - 1})^{2} + 8( - 1) + 3 \\ 2 - 8 + 3 \\ 5 - 8 \\ = - 3[/tex]
Answer:
2x² - 5x + 11x + 2x + 3 = -3
Step-by-step explanation:
Here, x = -1
2x² - 5x + 11x + 2x + 3
= 2x² + 8x + 3
= 2×(-1)² + 8×(-1) + 3
= 2 - 8 + 3
= -3
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