which expression is equal to
5(2x2 – 1) 3(7x2 1)?
11x2 2
11x2 – 2
31x2 2
31x2 – 2
5(2x2 – 1) 3(7x2 1)?
11x2 2
11x2 – 2
31x2 2
31x2 – 2