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Answer:
1.b(a+c+d)
2.9(xy+3x+4y)
3.3x²y²(xy-9x³y³+27) -4
4.15mk(4+3m²k²+2m³k)
5.11y²(y+3y²)
Step-by-step explanation:
1.ab+bc+bd=b(a+c+d)
2.9xy+27x+36y
=9xy+(3)(9)x+(4)(9)(y)
=9(xy+3x+4y)
3.4-3x³y³-27x⁵y⁵+81x²y²
=4- (3)(x²)(x)(y²)(y)-(3)(9)(x²)(x³)(y²)(y³)+(3)(27)x²y²
=3x²y²(xy-9x³y³+27) -4
4. 60mk +45m³k³ +30m⁴ k²
=4x15mk+3x15m³k³ +2x15m⁴k²
= 15mk(4+3m²k²+2m³k)
5.11y²+33y⁴
=11(y²)+(11)(3)(y²)(y²)
=11y²(y+3y²)