Answer:
a=-16
Step-by-step explanation:
When the - 8 is moved after the equals.. It changes sign
<em>You</em><em> </em><em>can</em><em> </em><em>try</em><em> </em><em>this</em><em> </em><em>in</em><em> </em><em>calculator</em><em> </em><em>also</em>
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106
Substitute x = 3 into f(x) and evaluate , that is
f(3)
= 10(3)² + 6(3) - 2 = 10(9) + 18 - 2 = 90 + 18 - 2 = 106