例1:分解( f(x) = x^3 - 7x + 6 ) 试根发现( f(1) = 1 - 7 + 6 = 0 ),故( (x - 1) )为因式。用综合除法分解得商式( x^2 + x - 6 ),进一步因式分解为( (x - 1)(x + 3)(x - 2) ),对应根为1, -3, 2。 例2:验证因式正确性 若将( x^4...
4. Factor the expression completely.6×3-4×2-16x C A.0 B. 2x(3 ×2-2x-8) C. 2x(3x+4)(x-2) D. 4x(2x+1)(x-4) E. 2x(2 ×2+7x-4) 相关知识点: 试题来源: 解析 C4. C. First, factor out any common factors from each of the three terms, , and . Notice that the...
We use this equation (from right to left) to factor any trinomial of the form x2 + Bx + C. We find two numbers whose product is C and whose sum is B. Example 1 Factor x2 + 7x + 12. Solution We look for two integers whose product is 12 and whose sum is 7. Consider the ...
(a) Factor: 6x − 7x + 2 (b) Find the x‑intercepts of the graph of y = 6x − 7x + 2. 相关知识点: 试题来源: 解析 (a) (2x − 1)(3x − 2); (b) x = AND x = (a) (2x − 1)(3x − 2); (b) x = AND x = ...
How do you factor x^2 + 1? How do you factor xy - 7x + 7y - 49? How do you factor 5a - 20? How do you factor x^2 - 8x - 48? How do you factor p^2 + 18p + 32? How do you factor -3x - 4x? How do you factor f(x) = 4x^4 + 5x^3 + 9x^2 + 10x + 2?
Factor: { 1. 6x^2y + 4xy^3 + 10x^4y^4\2. 27m^3 - 8\3. 6n^8 - 11n^4 - 10\4. nx^2 + x^2 - 9n - 9 } Factor. 3m - 9m^2 + 15m^3 Factor x^3 + 7x^2 - 12x + 6. Factor: x^5 + y^5 Factor 2x^{4} -3x^{3}- 6x^{2}+13x-6 ...
(x+3)(x+4)① 12 can be factored as 1×12, 2×6 and 3×4.pq=12,so p and q can be 1 and 12, 2 and 6 or 3 and 4.p+q should be equal to 7, so when p and q are 3 ane 4, p+q=7.Thus, x2+7x+12=(x+3)(x+4).②1×4+1×3=7,thus, x2+7x+12=(x+3)(x...
(x - 9)(x - 2) Factor: x² - 11x + 18 (x - 5)(x + 12) Factor: x² + 7x - 60 (x + 9)(x + 7) Factor: x² + 16x + 63 n(n + 7) Factor: n² + 7n 3(n + 6)(n + 9) Factor: 3n² + 45n + 162 x(7x - 8) Factor: 7x² - 8x Constant Monomial...
(录排老师,解析有图要画) (1) 4x2+8x+3= (2) 6x2−7x−24= (3) 14y2−15y+4= (4) −6x2+13x−6= 相关知识点: 试题来源: 解析 (1) (2x+1)(2x+3) (2) (2x+3)(3x−8) (3) $(2x-1)(7x-4) (4) −(2x−3)(3x−2)反馈...
Factorise the following: x^(3)-2x^(2)-5x+6 02:38 Factorise (Using factor theorem ) : a^(3)-7a^(2)+7a+15 03:16 Factorise (Using factor theorem ) : 2a^(3)-5a^(2)b+6ab^(2)+3b^(3) 02:26 Factorise (Using factor theorem ) : x^(4)+4x^(3)-7x^(2)-34x-24 05:47 ...