Question

(x+7y)(7x-y)for x=2,y=0

Answer 1

$\large{\boxed{\bold{Solution:}}}$

$(x + 7y)(7x - y)$

Given: x = 2 and y = 0

$(x + 7y)(7x - y) \\ \\ (2 + 0 \times y)(7 \times 2 - 0) \\ \\ (2 + 0)(14 - 0) \\ \\ 2 \times 14 \\ \\ 28 \: \: ans...$

$\textbf{Thank you!!}$

Answer 2

(2+7×0)(7×2-0)
(2+0)(7×2-0)
(2+0)(14-0)
by cross multiplication
2×14+0×0
28 answer