Math

Question Evaluate the polynomial 8x+7-8x + 7 when x=7x=7.

Studdy Solution

STEP 1

Assumptions
1. The polynomial given is 8x+7-8x + 7.
2. We need to evaluate the polynomial for x=7x = 7.

STEP 2

To evaluate the polynomial for x=7x = 7, we substitute xx with 7 in the polynomial expression.
8x+7becomes8(7)+7-8x + 7 \quad \text{becomes} \quad -8(7) + 7

STEP 3

Now, we perform the multiplication of 8-8 and 77.
8×7=56-8 \times 7 = -56

STEP 4

Substitute the result of the multiplication back into the expression.
56+7-56 + 7

STEP 5

Finally, we add 77 to 56-56 to get the result.
56+7=49-56 + 7 = -49
The value of the polynomial 8x+7-8x + 7 for x=7x = 7 is 49-49.

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