Question

Multiply and verify the result for given values:
(i) ( x+y) ( 7x-y ), x=1 and y= 2​

Answer 1

Answer:

(1+2) (7(1)-2)

3+5 =8

Mark me BRILLIANT

Answer 2

Answer:

x = 1, y = 2

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

$(1 + 2)((7 \times 1) - 2)$

$3(7 - 2)$

$21 - 6$

$15$

Ans. 15

Hope it helps.