Answer:
x² + 8x
Explanation:
→ Write down the formula for the area of a trapezoid
0.5 ( a + b ) × h
→ Substitute in the values
0.5 ( x + 10 + x + 6 ) × x
→ Simplify
0.5 ( 2x + 16 ) × x
→ Simplify again
x × ( x + 8 )
→ Evaluate
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