Question

multiply
$(m ^2 + 1) (m^2 - 1)$
​

Answer 1

Answer:

m^4 - 1

Step-by-step explanation:

(m^2+1)(m^2−1)

=(m^2+1)(m^2+−1)

=(m^2)(m^2)+(m^2)(−1)+(1)(m^2)+(1)(−1)

=m^4−m^2+m^2−1

=m^4−1