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GalinKa [24]
2 years ago
8

If x= -4, find the value of x²-5+6.​

Mathematics
2 answers:
Vilka [71]2 years ago
7 0

Answer:

<em><u>-15</u></em>

Step-by-step explanation:

<em><u>if</u></em><em><u> </u></em><em><u> </u></em><em><u>x</u></em><em><u>=</u></em><em><u> </u></em><em><u>-4</u></em>

<em><u>=</u></em><em><u>x</u></em><em><u>^</u></em><em><u>2</u></em><em><u> </u></em><em><u>-</u></em><em><u> </u></em><em><u>5</u></em><em><u>+</u></em><em><u> </u></em><em><u>6</u></em>

<em><u>=</u></em><em><u>(</u></em><em><u>-4</u></em><em><u>)</u></em><em><u>^</u></em><em><u>2</u></em><em><u> </u></em><em><u>-</u></em><em><u> </u></em><em><u>5</u></em><em><u> </u></em><em><u>+</u></em><em><u> </u></em><em><u>6</u></em>

<em><u>=</u></em><em><u>-16</u></em><em><u> </u></em><em><u>-</u></em><em><u> </u></em><em><u>5</u></em><em><u> </u></em><em><u>+</u></em><em><u> </u></em><em><u>6</u></em>

<em><u>=</u></em><em><u>-16</u></em><em><u> </u></em><em><u>-</u></em><em><u> </u></em><em><u>1</u></em><em><u>1</u></em>

<em><u>=</u></em><em><u>-15</u></em>

lbvjy [14]2 years ago
3 0

Answer:

42 is your answer if there is -5x

Step-by-step explanation:

when x=-4

x²-5x+6=(-4)²-5×-4+6=16+20+6=42

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