Question

21r^2 - 146r + 336
Factorisation method
Please give the answer fast its urgent please

Answer 1

Answer:

Prime factorization: 336 = 2 x 2 x 2 x 2 x 3 x 7, which can be ... Factors of 336 : 1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, ...

Answer 2

Answer:

we have to use the quadratic formula

Step-by-step explanation:

$-b +- \sqrt{b^{2} -4ac}/2a$

where b= -146

a=21

c=336

do in calculator, sorry