BErapa hasil dari (2x+3)+(-5x-4) tolong yah jawabanya

-10x²-8x-15x-12
=10x²-23x-12

= (2×3) + (-5 × -4)
= 2×3 + (-5 × -4)
= 2×3 – 5× -4
= 6 – 5 × -4
= 6 +20
= 26
MaafYhaKalauSalah..