Question

See attachment.

Answer 1

multiply each term in second bracket first by 4sqrt7 then by -12sqrt2 and simplify

i'll start you off:

4sqrt7 * 2sqrt7 = 8*7 = 56
4sqrt7 * 6sqrt2 = 24sqrt14

Answer 2

ok so is\[24\sqrt{14}\] is the answer?

Answer 3

i don't know, look what jimmyrep has written

Answer 4

no ive only done half of the problem
first two terms are 56 + 24sqrt14 - now u need to multiply the two terms in second bracket by -12sqrt2

Answer 5

(a + b)(c + d) = ac + ad + bc + bd

Answer 6

-88

Answer 7

us f

Answer 8

yup -88

Answer 9

us formula a2 -b2 =(a-b)(a+b)

Answer 10

ty jimmy

Answer 11

so -88 is the answer?