Answer:
18x4-30x3+66*2-40x+56
Explanation:
( 6 x 2 + 8 ) ( 3 x 2 − 5 x + 7 ) Expand ( 6 x 2 + 8 ) ( 3 x 2 − 5 x + 7 ) by multiplying each term in the first expression by each term in the second expression. 6 x 2 ( 3 x 2 ) + 6 x 2 ( − 5 x ) + 6 x 2 ⋅ 7 + 8 ( 3 x 2 ) + 8 ( − 5 x ) + 8 ⋅ 7 Simplify terms. Tap for more steps... 18 x 4 − 30 x 3 + 66 x 2 − 40 x + 56