Question

i want answer part (E) AND (F) i will add you on brainlist tommorow is my exam​

Answer 1

Answer:

(e)(2a^2+9)(2a^2+5)

=4a^4+(9+5)2a^2+45

= 4a^4+28a^2+45

(f)(a^2+B^2)(-a^2+b^2)

=(b^2+a^2)(b^2-a^2)

=(b^2)^2-(a^2)^2

=b^4-a^4

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Please mark my answer as brainallist

Answer 2

e)

=(2a2+9)(2a2+5)

=(2a2)(2a2)+(2a2)(5)+(9)(2a2)+(9)(5)

=4a4+10a2+18a2+45

=4a4+28a2+45

f)(a²+b²)(-a²+b²)

=(a2+b2)(−a2+b2)

=(a2)(−a2)+(a2)(b2)+(b2)(−a2)+(b2)(b2)

=−a4+a2b2−a2b2+b4

=−a4+b4