(b+4)²+4(b+4)-21 FACTRISE IT
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(b + 4)² + 4(b + 4) — 21
(b + 4)(b + 4) + 4(b + 4) - 21
(b + 4)(b + 4) + 4(b + 4) - 21
b(b + 4) + 4(b + 4) + 4(b + 4) - 21
b(b + 4) + 4(b + 4) + 4(b + 4) - 21 b² + 4b + 4(b + 4) + 4(b + 4) — 21
b² + 4b + 4(b + 4) + 4(b + 4) - 21
b² + 4b + 4b + 16 + 4(b + 4) - 21
b² + 4b + 4b + 16 + 4(b + 4) − 21
b^ +8b+16+4(b+4)–21
b^ +8b+16+4(b+4) – 21
b² + 8b+ 16 + 4b + 16-21
b² + 8b+ 16 + 4b + 16-21
b² + 8b+ 11 + 4b
b² + 8b+ 11 + 4b
b²+12b+11.
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