Question

Verify whether -2 is a zero of the polynomial 2x² + x² - 5x + 2

Answer 1

Answer:

2(-2)²+(-2)²-5(-2)+2=0

2×4+4+10+2=0

8+4+10+2=0

24=0

Answer 2

Answer:

24

Step-by-step explanation:

2x²+x²-5x+2

2×(-2)²+(-2)²-5×(-2)²+2

8+4+10+2

24