4. a2 + 4a -5= (a + 5)(a -1) is an example of solving quadratic equation by
a. completing the square
c. factoring
b. quadratic formula
d. extracting square root
a. completing the square
c. factoring
b. quadratic formula
d. extracting square root
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Answer:
Factoring
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a2 + 4a -5= (a + 5)(a -1) is an example of solving quadratic equation by factoring
Answer:
quadratic formula
Step-by-step explanation:
thats my answer