katrinamonkey2006 katrinamonkey2006

03-02-2021
Mathematics

contestada

(y +3) (y -4) can you show me solving step by step please

Respuesta :

JadeMatildeF JadeMatildeF

03-02-2021

Answer: y^2-y-12

Step-by-step explanation:

a=y, b=3, c=y, d=-4

=yy+y\left(-4\right)+3y+3\left(-4\right)

Apply minus−plus rules

(+(−a)=−a)

=yy-4y+3y-3\cdot \:4

Simplify yy-4y+3y-3x4:y^2-y-12

=y^2-y-12

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