If the point (3, m) is an intersection of the image of the quadratic function y = 2x & # 178; and the image of the linear function y = KX + 3, then M = (), K=（

If the point (3, m) is an intersection of the image of the quadratic function y = 2x & # 178; and the image of the linear function y = KX + 3, then M = (), K=（

Substituting (3, m) into the parabola analytical formula, we get the following results:
2·3²=m
∴m=18
This point is (3,18), and then (3,18) is substituted into the analytical formula of straight line
3k+3=18
∴k=5
That is: M = 18, k = 5
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Factorization 1. (x + P) ^ 2 - (x + y) ^ 2.36 (x + y) ^ 2-49 (X-Y) ^ 2.3. (x ^ 2 + X + 1) ^ 2-1

1.（x+p)^2-(x+y)^2
=(x+p+x+y)(x+p-x-y)
=(2x+p+y)(p-y)
2.36(x+y)^2-49(x-y)^2
=[6(x+y)-7(x-y)][6(x+y)+7(x-y)]
=(-x+13y)(13x-y)
=-(x-13y)(13x-y)
3.(x^2+x+1)^2-1
=(x²+x+2)(x²+x)
=x(x+1)(x²+x+2)

Factorization: (1) (x + y) ^ 2-4 (2) - 4A ^ 2 + 24a-36

(1)=(x+y)^2-2^2=（x+y+2)(x+y-2)
(2)=-4(a^2-6a+9)=-4(a-3)^2