Question

class 10Tu Ques plz solve it Ch 4​

Answer 1

Step-by-step explanation:

√(2x + 9) + x = 13

√(2x + 9) = 13 - x

• Squaring both side

[√(2x + 9)]² = (13 - x)² x² - 20x - 8x + 160 = 0 x = 20 or 8

2x + 9 = 169 + x² - 26x

x² - 28x + 160 = 0

x(x - 20) - 8(x - 20) = 0

(x-20) (x - 8) = 0

4√3 x² + 5x - 2√3 = 0

4√3 x² + 8x - 3x-2√3 = 0.

4x(√3x + 2) -√3(√3x + 2) = 0

(√3x + 2) (4x - √3)= 0

x = -2/√3 or √3/4

Answer 2

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hope it helps you please Mark