Question 5 of 40 What is the product of (2x + 3x - 1) and (3x+5)?
A. 6x3 +9x2 - 3x - 5
O B. 6x3 +19x2 -12x+5
C. 6x2 +19x2 + 12x - 5
D. 6x +10x2 +15x-5

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

Use complete sentences to differentiate between a regular tessellation, and a pure tessellation. be sure to include specific types of polygons in your explanation.

If mary had 320 toy cars and she gave her friend 50 cars and then she gave her brother 72 more cars how much toy cars would mary have left ● explain with proper details