Question

Find the zero of the
polynomial
p
$(x) = 7 {x}^{2} + 2x - 2x - 7$
​

Answer 1

Answer:

the zero are 1 and -1

Explanation:

p(x) = 7x² + 2x - 2x - 7x = 0

=> 7x² - 7 = 0

=> 7 (x² - 1) = o

=> (x + 1)(x - 1) = 0

=> x = 1 or (-1)

Answer 2

Answer:

the zero are 1 and -1

Explanation:

p(x) = 7x2 + 2x - 2x - 7x =

=> 7x2 - 7 = 0

=> 7 (x2 - 1) = 0

=> (x + 1)(x - 1) = 0

=> x = 1 or (-1)