Q7 of 805 Page 257

In the given figure, the value of x is

According to the figure,

⇒ 4x + 5x = 180° [Angle on a straight line]

⇒ 9x = 180°

⸫ x = 20°

If p(x) = x³ + x² + ax + 115 is exactly divisible by (x + 5) then a = ?

The equation of y-axis is

In the given figure, CE || BA and EF || CD. If ∠BAC = 40°, ∠ACB = 65° and ∠CEF = x° then the value of x is

Factorize: √2x² + 3x + √2