Math, asked by kour123, 1 year ago

factorize
a. a power 4 - b power 4
b. p power 4 - 81

Answers

Answered by shravani2724
0
for a. use a_b)2 formula
b.Use the formula a2_b2 ok
Answered by Anonymous
0
a4 – b4 = (a – b)(a3 + a2b + ab2 + b3) = (a – b) [ a2(a + b) + b2(a + b) ] = (a – b)(a + b)(a2 + b2) or, more simply,   a4 – b4 = (a2 – b2)(a2 + b2) = (a – b)(a + b)(a2 + b2)


questions b.

p^4-81=0
p^4=81
p=(81)^1/4
p=3


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