Question

15 x square minus x minus 28​

Answer 1

Answers

The given expression 15x? x – 28 can be factorised as follows:

15х2 — х — 28— 15х? —21х + 20х -

28 — 3x(5х — 7) + 4(5х — 7) — (3х +

4)(5x – 7)

Hence, 15x? - x — 28 3 (3х 4)(5х — 7)