Simplify the expression: 7x2–5x2 i need the answer quickly
2 answers:
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Answer:
<em>9 is a zero of h(x).</em> C. Correct
Step-by-step explanation:
We want to find the zeros of the function
The zeros are the values of x that make h(x)=0, thus we need to solve the equation:
Factoring:
This equation has 3 solutions:
x=9, x=-9, x=-4
A. 0 is not a zero of h(x). Incorrect
B. 4 is not a zero of h(x). Incorrect
C. 9 is one of the zeros of h(x) calculated above. Correct
D. 81 is not a zero of h(x). Incorrect