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证明,如果P(x)是一个多项式仅具有偶次幂x,而P(a)=0,则P(x)的整除x^2-a^2ProvethatifP(x)isapolynomialhavingonlyevenpowersofx,andP(a)=0,thenP(x)isdivisiblebyx^2−a^2

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证明,如果P(x)是一个多项式仅具有偶次幂x,而P(a)= 0,则P(x)的整除 x^2 - a^2
Prove that if P(x) is a polynomial having only even powers of x,and P(a) = 0,then P(x) is divisible by x^2 − a^2
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答案和解析
证明:因为P(x)是一个多项式仅具有偶次幂x,而P(a)= 0
所以P(-a)= 0 则P(x)能被(x-a)(x+a)整除