Question

Write the quadratic equations in standard form ax² + bx + c = 0.
8 – 3x – 4x² = 0

Answer 1

Given: 8 – 3x – 4x² = 0
On multiplying both sides by –1, we get:
–(8 – 3x – 4x²) = 0
=> –8 + 3x + 4x² = 0
=> 4x² + 3x – 8 = 0
Thus, the standardised form of the given quadratic equation is 4x² + 3x – 8 = 0.
On comparing this equation with ax² + bx + c = 0, we get:
a = 4, b = 3 and c = –8