Question

Trinomial

1. 2x^2-5x+2

2. 3x^2+10x+3

3. 2x^2+11x+5

4. 2x^2+7x+6

5. x^2-3x-40

please help me solve i cant figure it out

Answer 1

How are u supposed to solve them??? By factorising????

Answer 2

?????????

Answer 3

yh

Answer 4

2x^2-5x+2
STEP 1 : we find the product of the coefficient of x^2 (i.e. 2) and constant (i.e. 2)
so 2 * 2 = 4
STEP 2: Now we find two factors of 4, say A and B, such that A*B = 4 and A+B = -5 (i.e. coefficient of x)
4 = 1 x 4 or -1 x -4
4 = 2 x 2 or -2 x -2

we find -1 * -4 = 4 and (-1) + (-4) = -5
STEP 3: Now we split the middle term -5x as -x -4x
so equation becomes
2x^2 -x -4x + 2
x(2x - 1) -2(2x - 1)
(x - 2)(2x -1)

Answer 5

like for example
2x^2-7x-15
(2x+3)(x-5) answer

Answer 6

Now apply the same method on all others and you will get your answers....

Answer 7

Yes it is correct...