Question

Factorise. 45²-4t²+4t-1​

Answer 1

=45²-4t²+4t-1​

=2025-4t²+4t-1. (45²=2025)

=2024-4t²+4t

=4t²-4t+1

=4t²-2t-2t+1

=2t(2t-1) -1(2t-1)

=(2t-1)(2t-1)

=2t-1=0

=2t=1

.$\bold\pink{answer\::}$

$\bold\blue{ =\:t\:\:=\:1/2 }$

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Answer 2

please see in attachment.....
love 2 help
^_^