Question

(3x¹+4y)•(4x²+5y)
(5x²+2y)•(8x²+4y)
(-5a-3)•(7a-7)​

Answer 1

Explicación paso a paso:

Productos Notables

(3x+4y)(4x²+5y)    

(3x)(4x²) + (3x)(5y) + (4y)(4x²) + (4y)(5y)    

12x³ + 15xy + 16yx² + 20y²

(5x²+2y)(8x²+4y)    

(5x²)(8x²) + (5x²)(4y) + (2y)(8x²) + (2y)(4y)    

40x⁴ +20x²y +16yx² +8y²

40x⁴ + 36x²y + 8y²

(-5a-3)(7a-7)    

(-5a)(7a) + (-5a)(-7) + (-3)(7a) + (-3)(-7)    

-35a² +35a -21a +21

-35a² +14a +21