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F4 maths Quadratic equations
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Could anyone help me with these questions?1) If x = k (x-1)(x-4) has two identical roots, find the values of k.2) If the graph of y = x^2 + (k+1)x +4 touches the x-axis,a) Find the two values of k,b) Hence find the x-intercept for each case.3) If 3z^2 + 6z + p + 1 = 0 has real roots, find the... 顯示更多 Could anyone help me with these questions? 1) If x = k (x-1)(x-4) has two identical roots, find the values of k. 2) If the graph of y = x^2 + (k+1)x +4 touches the x-axis, a) Find the two values of k, b) Hence find the x-intercept for each case. 3) If 3z^2 + 6z + p + 1 = 0 has real roots, find the maximum value of p. 4) Find the value of k if the roots of 3x^2 + (k+3)x - 12 = 0 are numerically equal but opposite in sign. 5) Find the value of p if one root of 3x^2 - 4x + p = 0 is three times the other. Thankssss!!!!
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F4 maths Quadratic equations
發問:
Could anyone help me with these questions?1) If x = k (x-1)(x-4) has two identical roots, find the values of k.2) If the graph of y = x^2 + (k+1)x +4 touches the x-axis,a) Find the two values of k,b) Hence find the x-intercept for each case.3) If 3z^2 + 6z + p + 1 = 0 has real roots, find the... 顯示更多 Could anyone help me with these questions? 1) If x = k (x-1)(x-4) has two identical roots, find the values of k. 2) If the graph of y = x^2 + (k+1)x +4 touches the x-axis, a) Find the two values of k, b) Hence find the x-intercept for each case. 3) If 3z^2 + 6z + p + 1 = 0 has real roots, find the maximum value of p. 4) Find the value of k if the roots of 3x^2 + (k+3)x - 12 = 0 are numerically equal but opposite in sign. 5) Find the value of p if one root of 3x^2 - 4x + p = 0 is three times the other. Thankssss!!!!
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