Solve for x
help please!!

x=29°

Step-by-step explanation:

The sign above means congruent meaning the shapes are of the same shape and sizes.

The triangles are oppositely congruent meaning angle D= angle A and angle E= angle B.

So if C is 48 and D is 74, 48+74= 122. 180-122=58

Angle E is 58. According to the second statement above angle A will then be 74 and C will still be 48

74+48+2x= 180

2x=58

x=58/2 = 29°

answer is 8x+24

area of vanessa's patio = length × width

given, length = (3x² + 5x + 10)

width = (x² - 3x - 1)

area of vanessa's patio = (3x² + 5x + 10)(x² - 3x - 1)

= 3x²(x² - 3x - 1) + 5x(x² - 3x - 1) + 10(x² - 3x - 1)

= 3x⁴ - 9x³ - 3x² + 5x³ - 15x² - 5x + 10x² - 30x - 10

= 3x⁴ - 4x³ - 8x² - 35x - 10

hence, expression of vanessa's patio = (3x⁴ - 4x³ - 8x² - 35x - 10)