Question

(x² + x)2 +4(x²+x)-21
plz help me...​

Answer 1

Step-by-step explanation:

(x²+x)2 + 4(x²+x) -21

(X²+x) (2+4) - 21

6(x²+x) - 21

2(x²+x) - 7

2x² + 2x - 7