factorise please this question urgent
Attachments:
Answers
Answered by
1
(a^2 - 170)(a + 7)(a - 7)
= (a^2 - 170)(a^2 - 7a + 7a - 49)
= (a^2 - 170)(a^2 - 49)
= (a^4 - 49a^2 - 170a^2 + 8330)
= a^4 - 219a^2 + 8330.
The factors are (a^2 - 170)(a + 7)(a - 7)
= (a^2 - 170)(a^2 - 7a + 7a - 49)
= (a^2 - 170)(a^2 - 49)
= (a^4 - 49a^2 - 170a^2 + 8330)
= a^4 - 219a^2 + 8330.
The factors are (a^2 - 170)(a + 7)(a - 7)
Similar questions