Question

r2-16t+63=0
factorise the following ​

Answer 1

r=−7

r=−9

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Answer 2

Answer:

$\huge\boxed{\fcolorbox{green}{yellow}{r2 16t+ 63 = 0}}$

Add 16t to both sides.

Anything plus zero gives

itself.

$\boxed{\fcolorbox{red}{beige}{r2+63 = 16t}}$

Subtract 63 from both sides.

$\huge\boxed{\fcolorbox{green}{pink}{= 16t - 63}}$